feat: v0.19.0 — debug-observability core complete

Milestone minor (operator-approved). Publishes the design-brief's
headline deliverable: the multi-pane debug-observability dashboard is
complete — all four observability panes are built and consuming their
real Worldtree endpoints:

- Persona      → GET /agents/{id}/persona_state
- Tools        → GET /sessions/{id}/tools
- BifrostState → GET /admin/sessions/{id}/bifrost
- AdminEvents  → GET /admin/events (SSE)

v1 client-REST coverage is 12/40; both non-REST surfaces (SSE 11/11,
Bifrost provider planes 8/8) already complete. Only Tier-2 client I/O
(transient-characters routing, persona_state-write) remains in scope;
everything else is covered or excluded-by-design in docs/coverage-map.md.

Version bump only (the feature arc landed across v0.18.5–v0.18.11).

docs/contracts/issues/2.contract.md

@@ -206,3 +206,110 @@ TESTS:
   limit_above_max [adversarial]: limit=300 → AssertionError; no HTTP issued
   empty_cursor [adversarial]: cursor="" → AssertionError; no HTTP issued
 ```
+
+## Amendment 2026-06-30 — boot-time introspection reads (v1 coverage-audit: capabilities+me)
+
+The v1 coverage-audit added two read-only server-introspection endpoints as
+cheap debug primitives (surfaced via a new `ratatoskr --whoami` one-shot). Both
+mirror `get_persona_state`: GET, 200 → parsed dict verbatim, any non-200 →
+`SessionApiFailed`. The frozen OpenAPI types both responses as freeform objects,
+so the wrappers return `dict[str, Any]` (not a typed dataclass).
+
+```contract
+FN get_me(client: httpx.AsyncClient) -> dict[str, Any]
+BRIEF: GET /me — the authenticated principal's identity + key metadata (spec §GET /me). Boot-time whoami: verify the key without agent-config side effects. Returns parsed JSON verbatim; spec documents {user_id, scopes, tier, display_name?, key_id?, key_label?, ...} with optional fields OMITTED (not null). Read-only, rate-exempt, no audit emission.
+PRE: [PRE-001 hard] client is not None -- assert client is not None
+POST: [POST-001 return_value] on 200 returns resp.json() unmodified -- assert result == resp.json()
+ERROR_ROUTING:
+  HTTP non-200 (incl. 401 bad/absent key when auth enabled):
+    local_handling: raise SessionApiFailed(status=resp.status_code, body=resp.content)
+    flow_control: abort
+    state_recovery: none (caller decides: bad key → re-key; degraded tier="unknown" is still a 200)
+STEPS:
+  1. [setup, prescriptive] assert client is not None
+  2. [sequential, prescriptive] resp = await client.get("/me")
+  3. [branch, prescriptive] IF resp.status_code == 200: RETURN resp.json(); ELSE RAISE SessionApiFailed
+TESTS:
+  happy_authenticated [happy,tracer]: 200 {user_id, scopes, tier, key_id} → dict returned verbatim
+  anonymous_dev_mode: 200 {user_id:"anonymous", tier:"anonymous"} → dict; no key_* fields (omitted)
+  401_raises [error]: 401 → SessionApiFailed(status=401)
+
+FN get_capabilities(client: httpx.AsyncClient) -> dict[str, Any]
+BRIEF: GET /capabilities — server capability discovery (spec §Ephemeral Templates). Returns {ephemeral_templates: {echo: {allowed_models, default_model, system_prompt_max_bytes}}}. Any authenticated caller may read it (no instantiate scope). Parsed dict verbatim; any non-200 → SessionApiFailed.
+PRE: [PRE-001 hard] client is not None -- assert client is not None
+POST: [POST-001 return_value] on 200 returns resp.json() unmodified -- assert result == resp.json()
+ERROR_ROUTING:
+  HTTP non-200:
+    local_handling: raise SessionApiFailed(status=resp.status_code, body=resp.content)
+    flow_control: abort
+    state_recovery: none
+STEPS:
+  1. [setup, prescriptive] assert client is not None
+  2. [sequential, prescriptive] resp = await client.get("/capabilities")
+  3. [branch, prescriptive] IF resp.status_code == 200: RETURN resp.json(); ELSE RAISE SessionApiFailed
+TESTS:
+  happy [happy]: 200 {ephemeral_templates:{echo:{...}}} → dict returned verbatim
+  non_200_raises [error]: 500 → SessionApiFailed(status=500)
+```
+
+## Amendment 2026-07-01 — session tool introspection (v1 coverage-audit)
+
+Owner-scoped tool-inventory read (spec #183, `GET /sessions/{id}/tools`),
+surfaced in the TUI Tools pane on session-attach. Same shape as the other
+introspection wrappers: GET, 200 → parsed dict verbatim, non-200 →
+`SessionApiFailed`. Reachable with the consumer key (no admin scope), unlike the
+admin variant `GET /admin/sessions/{id}/tools`.
+
+```contract
+FN get_session_tools(client: httpx.AsyncClient, session_id: str) -> dict[str, Any]
+BRIEF: GET /sessions/{session_id}/tools — owner-scoped merged tool inventory (spec #183) the LLM saw at turn-fire: {agent_id, builtin_tools: [...], bifrost_tools: [{name, description, parameters}, ...]}. Owner gate (ctx.user_id == session.user_id); cross-owner → 404 session_not_found (existence-hiding), revoked → 401 auth_revoked. Parsed dict verbatim; any non-200 → SessionApiFailed.
+PRE: [PRE-001 hard] client is not None -- assert client is not None
+PRE: [PRE-002 hard] session_id is non-empty str -- assert session_id and isinstance(session_id, str)
+POST: [POST-001 return_value] on 200 returns resp.json() unmodified -- assert result == resp.json()
+ERROR_ROUTING:
+  HTTP non-200 (incl. 404 session_not_found cross-owner/unknown, 401 auth_revoked):
+    local_handling: raise SessionApiFailed(status=resp.status_code, body=resp.content)
+    flow_control: abort
+    state_recovery: none
+STEPS:
+  1. [setup, prescriptive] assert PRE-001, PRE-002
+  2. [sequential, prescriptive] resp = await client.get(f"/sessions/{session_id}/tools")
+  3. [branch, prescriptive] IF resp.status_code == 200: RETURN resp.json(); ELSE RAISE SessionApiFailed
+TESTS:
+  happy [happy,tracer]: 200 {agent_id, builtin_tools:[], bifrost_tools:[{name,...}]} → dict verbatim
+  cross_owner_404 [error]: 404 session_not_found → SessionApiFailed(status=404)
+  empty_session_id [adversarial]: "" → AssertionError; no HTTP issued
+```
+
+## Amendment 2026-07-01 — admin BifrostState read (v1 coverage-audit)
+
+Admin-scoped Bifrost dispatch-state read (spec #176, `GET /admin/sessions/{id}/bifrost`),
+surfaced in the TUI BifrostState pane on session-attach. The first admin-key
+consumer in ratatoskr: requires the `admin.sessions.read` scope, so the request
+OVERRIDES the Authorization header with the caller-supplied `admin_key` (distinct
+from the client's default consumer key). Same result-shape convention as the
+other introspection wrappers: 200 → parsed dict verbatim, non-200 → `SessionApiFailed`.
+
+```contract
+FN get_session_bifrost(client: httpx.AsyncClient, session_id: str, *, admin_key: str) -> dict[str, Any]
+BRIEF: GET /admin/sessions/{session_id}/bifrost — admin-scoped live Bifrost binding (spec #176): {endpoint_url, consumer_id, connected, capabilities_granted, tools:[{name, description}]}. Requires admin.sessions.read; the request sets Authorization: Bearer <admin_key> (override), NOT the client's default consumer bearer. Parsed dict verbatim; any non-200 → SessionApiFailed — notably 403 auth_scope_denied and 404 session_not_bifrost_bound.
+PRE: [PRE-001 hard] client is not None -- assert client is not None
+PRE: [PRE-002 hard] session_id is non-empty str -- assert session_id and isinstance(session_id, str)
+PRE: [PRE-003 hard] admin_key is non-empty str -- assert admin_key and isinstance(admin_key, str)
+POST: [POST-001 return_value] on 200 returns resp.json() unmodified -- assert result == resp.json()
+POST: [POST-002 state_change] the outbound request Authorization header == f"Bearer {admin_key}" (override) -- assert request.headers["Authorization"] == "Bearer " + admin_key
+ERROR_ROUTING:
+  HTTP non-200 (incl. 403 auth_scope_denied, 404 session_not_found / session_not_bifrost_bound):
+    local_handling: raise SessionApiFailed(status=resp.status_code, body=resp.content)
+    flow_control: abort
+    state_recovery: none (caller decides: 403 → key lacks scope; 404 not-bound → benign unbound session)
+STEPS:
+  1. [setup, prescriptive] assert PRE-001..PRE-003
+  2. [sequential, prescriptive] resp = await client.get(f"/admin/sessions/{session_id}/bifrost", headers={"Authorization": f"Bearer {admin_key}"})
+  3. [branch, prescriptive] IF resp.status_code == 200: RETURN resp.json(); ELSE RAISE SessionApiFailed
+TESTS:
+  happy_uses_admin_bearer [happy,tracer]: 200 {endpoint_url, connected, capabilities_granted, tools} → dict verbatim; request Authorization == "Bearer <admin_key>" (override)
+  scope_denied_403 [error]: 403 → SessionApiFailed(status=403)
+  not_bound_404 [error]: 404 session_not_bifrost_bound → SessionApiFailed(status=404)
+  empty_admin_key [adversarial]: admin_key="" → AssertionError; no HTTP issued
+```

docs/coverage-map.md

@@ -48,7 +48,7 @@ resolved (§ Surface 1, scope-resolution table).
 
 | Surface | Points | ✅ covered-live | ⬜ gap (in-scope) | 🚫 excluded-by-design |
 |---|---|---|---|---|
-| REST (OpenAPI 2.2.0, path groups) | 40 | 7 | 11 | 22 |
+| REST (OpenAPI 2.2.0, path groups) | 40 | 12 | 6 | 22 |
 | SSE events | 11 | 11 | 0 | 0 |
 | Bifrost provider planes | 8 verbs | 8 | 0 | (10 gated verbs deferred) |
 
@@ -75,6 +75,11 @@ sub-gap).
 | `POST /agents/define` | ✅ | `tier3.py:175` → `_run_define` | Tier-3 create |
 | `PATCH /agents/{id}` | ✅ | `tier3.py:219` → `_run_patch` | Tier-3 mutate (system_prompt/model) |
 | `DELETE /agents/{id}` | ✅ | `tier3.py:242` → `_run_delete` | Tier-3 hard-delete |
+| `GET /me` | ✅ | `sessions.py:411` `get_me` → `cli.py` `--whoami` | identity/whoami probe; 401→SessionApiFailed |
+| `GET /capabilities` | ✅ | `sessions.py:428` `get_capabilities` → `cli.py` `--whoami` | Echo ephemeral-template discovery |
+| `GET /sessions/{id}/tools` | ✅ | `sessions.py:411` `get_session_tools` → `tui.py` `_hydrate_session_tools` | owner-scoped tool inventory in the TUI Tools pane (#183) |
+| `GET /admin/sessions/{id}/bifrost` | ✅ | `sessions.py:428` `get_session_bifrost` → `tui.py` `_hydrate_bifrost_state` | admin-scoped BifrostState pane (#176); admin key (`RATATOSKR_ADMIN_API_KEY`); live-auth-proven |
+| `GET /admin/events` (SSE) | ✅ | `sse_client.py` `stream_admin_events` → `tui.py` `_stream_admin_events` | admin lifecycle SSE stream (#11), session-filtered AdminEvents pane; admin key; live-auth-proven |
 
 **Sub-gaps inside ✅ path groups** (the method we use is live; a sibling method
 on the same path is an unwired frontier item — see frontier Tier 1):
@@ -92,18 +97,13 @@ on the same path is an unwired frontier item — see frontier Tier 1):
 
 | Endpoint | Status | Why in-scope |
 |---|---|---|
-| `GET /admin/events` | ⬜ | design-brief §5 v1 **AdminEvents pane**; = issue **#11**, **blocked** on `admin.events.read` scope (infra-ops) |
+| `GET /admin/sessions/{id}/tools` | ⬜ | admin variant of the Tools inventory — **covered-by-alternative** via the owner-scoped `GET /sessions/{id}/tools` (✅); this admin variant remains a gap only for cross-user operator debug |
-| `GET /admin/sessions/{id}/bifrost` | ⬜ | design-brief §5 v1 **BifrostState widget** — never built; admin-key-gated |
-| `GET /admin/sessions/{id}/tools` | ⬜ | design-brief §5 v1 **Tools widget** — never built; admin-key-gated |
-| `GET /capabilities` | ⬜ | server capability discovery — a turn flows through what's advertised |
-| `GET /me` | ⬜ | whoami / key-identity — "which key am I against" is a debug primitive |
 | (`GET /sessions` picker · resume) | ⬜ | sub-gaps above — presenter-wiring only, wrappers exist |
 
 **Tier 2 — rounds out I/O coverage under A (postdates the design-brief):**
 
 | Endpoint | Status | Why in-scope |
 |---|---|---|
-| `GET /sessions/{id}/tools` | ⬜ | Tier-3 owner-scoped tool introspection (#183) — reachable with the **consumer key** (no admin scope), the unblocked tool-introspection path |
 | `POST /sessions/{id}/persona_state` (write) | ⬜ | affect-injection is debug-relevant; pairs with our provider affect plane |
 | `POST /characters` · `DELETE /characters/{id}` · `GET /characters/{id}/state` · `GET /models/available-for-characters` | ⬜ | transient-characters (Echo) is a session-creation **routing path** a debug client should be able to drive a turn through |
 
@@ -201,22 +201,25 @@ starts exercising them.
 
 ## Convergence frontier (the v1 to-do)
 
-**Tier 1 — debug-observability core**, in dependency order:
+**Tier 1 — debug-observability core:**
 
-1. **Session picker + SSE-resume** — wrappers exist (`list_sessions`,
+1. ✅ **DONE** — Session picker (`v0.18.7`) + SSE-resume (`v0.18.5`/`.6`).
-   `reconnect_turn`), need presenter wiring only. **Cheapest; unblocked.**
+2. ✅ **DONE** — `GET /capabilities` + `GET /me` (`v0.18.8`, `--whoami`).
-2. **`GET /capabilities` + `GET /me`** — cheap debug primitives. Unblocked.
+3. ✅ **DONE** — BifrostState pane (`v0.18.10`, `GET /admin/sessions/{id}/bifrost`,
-3. **BifrostState + Tools widgets** (`GET /admin/sessions/{id}/{bifrost,tools}`)
+   admin-key; live-auth-proven). The Tools half was already covered by the
-   — design-brief'd v1, unbuilt. Admin-key-gated reads.
+   owner-scoped `GET /sessions/{id}/tools` (item 5).
-4. **#11 — AdminEvents pane** — **blocked** on an `admin.events.read` scope grant
+4. ✅ **DONE** — AdminEvents pane (`v0.18.11`, `GET /admin/events` SSE,
-   (infra-ops). The single externally-blocked item; everything else can ship
+   session-filtered; admin-key; live-auth-proven). #11's blocker was already
-   without it.
+   satisfied (admin key carries `admin.events.read`). **Tier 1 complete** — the
+   admin/debug-observability core (Persona · Tools · BifrostState · AdminEvents)
+   is fully built.
 
-**Tier 2 — rounds out coverage** (lower priority):
+**Tier 2 — rounds out coverage (all that remains):**
 
-5. **`GET /sessions/{id}/tools`** — owner-scoped tool introspection; consumer-key
+5. ✅ **DONE** — `GET /sessions/{id}/tools` (`v0.18.9`, owner-scoped tool inventory
-   reachable (no admin scope), so unblocked.
+   in the TUI Tools pane).
-6. **Transient-characters routing** (4 endpoints) + **`POST /sessions/{id}/persona_state`**.
+6. **Transient-characters routing** (4 endpoints) + **`POST /sessions/{id}/persona_state`**
+   — the only remaining in-scope client I/O points.
 
 ---
 

persistent-memory.md

@@ -153,6 +153,16 @@ decision. Captures rationale that won't be obvious from code alone.
 
 - `[2026-06-30]` **(b2) session-picker SHIPPED (`v0.18.7`) — bare TUI mode → startup picker (design-brief §4).** `list_sessions` had NO caller; now bare TUI mode (no `--session`/`--new`) resolves via `list_sessions` in `_resolve_then_run`: **0 sessions → `[no_sessions]` error, exit 14** (resume-only, honors §4 "no in-app session creation — `--new` flag only"); **exactly 1 → auto-resume** (§4 "picker only when >1"); **≥2 → new `SessionPickerApp`** (Textual `App[str|None]`, mirrors `AgentPickerApp`; ListView of sessions) → resume the pick (Esc/Ctrl-D → exit 0). cli `_parse` relaxed: bare TUI now VALID (was "pass exactly one" error); `--send` still requires one flag (non-interactive, no picker); `--agent` forbidden in bare mode; `run_tui` PRE-002 XOR→"not both". Direct in-session TDD (contract #6 amendment, validated OK): 3 widget pilot tests + 5 `_resolve_then_run` resolution tests + 3 cli validation tests. Suite **528 green**; touched code ruff-clean (mypy: only the `BINDINGS` list-invariance warning every App in tui.py already carries — consistent). **DESIGN NOTE — bare+0-sessions → error (clause-consistent). The friendlier auto-fall-through-to-new alternative is DEFERRED pending operator preference (it would create a session without `--new`, against the §4 negative clause).** **Frontier now: `GET /capabilities`+`GET /me` → BifrostState/Tools widgets (`GET /admin/sessions/{id}/{bifrost,tools}`, admin-key) → #11 AdminEvents (BLOCKED on `admin.events.read`).** heid-code-review NOT run on b1 or b2 (offered).
 
+- `[2026-06-30]` **capabilities+me slice SHIPPED (`v0.18.8`) — `GET /me` + `GET /capabilities` consumed via a new `--whoami` one-shot.** `get_me`/`get_capabilities` added to sessions.py (mirror `get_persona_state`: 200→dict verbatim, non-200→`SessionApiFailed`; freeform dicts per the frozen OpenAPI). New `ratatoskr --whoami` CLI mode (mirrors `--send`'s non-interactive shape) fetches both + prints an identity+capabilities report; standalone probe (mutually exclusive with `--send`/`--session`/`--new`/`--agent`, opens no session; new `ParsedArgs.whoami` field + main() dispatch). **`/capabilities` is the Echo EPHEMERAL-TEMPLATE discovery endpoint** (`{ephemeral_templates:{echo:{allowed_models,default_model,system_prompt_max_bytes}}}`), NOT a generic server-caps endpoint (audit finding — the coverage-map's earlier "server capability discovery" framing was imprecise). `/me` = whoami (`{user_id,scopes,tier,key_id?,...}`, optionals omitted-not-null). Contract-skip privilege invoked (low-effort GET wrappers) but contract #2 amended (2 FNs, validated OK) to keep the sessions spec canonical + honest test citations. TDD: 5 wrapper tests + 5 cli tests (validation + mode + error). Suite **538 green**; touched code ruff-clean (mypy: only `no-any-return` on `resp.json()`→dict, identical to the pre-existing `get_persona_state`). **Coverage: REST 9/40 ✅ (up from 7).** TUI-surfacing of /me (footer identity line) + /capabilities DEFERRED — the one-shot is the minimal tracer. **Frontier now: BifrostState + Tools widgets (`GET /admin/sessions/{id}/{bifrost,tools}`, admin-key-gated) → #11 AdminEvents (BLOCKED on `admin.events.read`).**
+- `[2026-07-01]` **b1 (SSE-resume) heid-code-review panel: ZERO findings — cross-model-verified clean.** Gróa (Grok) + Hulda (Codex) + Regin (GLM-5.2) each independently reviewed `stream_turn_resilient` vs contract #1's amendment (artifact-only, firewall held) → all three ZERO findings; signature / PRE-001..004 / STEP 1-4 / POST-001..003 / ERROR_ROUTING / all-8-TESTS confirmed, incl. the subtle `seen = last_seen or drop.last_seen_sse_id` zero-event-drop fallback. Convergent meta-note: **TDD + the unusually-prescriptive contract (STEPS `flexibility=prescriptive` + explicit GOTO) left no room for compliant-but-different drift — confirmation, not discovery.** Calibration signal: for a thin wrapper with a tight prescriptive contract + comprehensive TDD, the panel confirms rather than discovers. **b2 (picker) + capabilities+me NOT yet reviewed** (higher-surface b2 is the better candidate if more review is wanted). Dispatch msg `01KWE2K99T…` / thread `01KWE2K99S…`; heid dispatch-log `2026-06.jsonl#01KWE2V3MMY8XS55FCJYXYV14B`.
+
+- `[2026-07-01]` **`GET /sessions/{id}/tools` quick-win SHIPPED (`v0.18.9`) — owner-scoped tool inventory in the TUI Tools pane.** `get_session_tools` wrapper (sessions.py, mirror get_me: 200→dict, non-200→`SessionApiFailed`) + `_format_tool_inventory` helper + `_hydrate_session_tools` best-effort worker (mirror `_hydrate_persona`) wired UNCONDITIONALLY in `on_mount` → writes the merged `{agent_id, builtin_tools, bifrost_tools}` inventory (what the LLM saw at turn-fire) to the Tools pane + audits `session_tools_hydrated`, never crashes on failure. Owner-scoped (`ctx.user_id==session.user_id`) → reachable with the CONSUMER key, NO admin scope — so this **covers the design-brief §5 "Tools widget" via the reachable owner endpoint** (the admin `/admin/sessions/{id}/tools` variant stays a gap only for cross-user operator debug). Contract #2 amended (FN, validated OK) + TDD (3 wrapper respx tests + 1 format-helper unit + 2 hydrate integration tests via `_spy_writes`+pilot). Suite **544 green**; touched code ruff-clean (the tui.py ruff/mypy debt at other lines is pre-existing). **Coverage: REST 10/40 ✅.** **Frontier now: BifrostState widget (`GET /admin/sessions/{id}/bifrost`, admin-key) + #11 AdminEvents (BLOCKED on `admin.events.read`) + Tier-2 (transient-characters routing, `POST /sessions/{id}/persona_state`).**
+
+- `[2026-07-01]` **BifrostState pane SHIPPED (`v0.18.10`) — `GET /admin/sessions/{id}/bifrost` in a new TUI "Bifrost" pane; the FIRST admin-key consumer in ratatoskr.** `get_session_bifrost(client, session_id, *, admin_key)` (sessions.py) — admin-scoped (`admin.sessions.read`); the request OVERRIDES Authorization with `admin_key` (distinct from the consumer bearer, asserted in a test); 200→dict, non-200→SessionApiFailed. Admin-key wiring: `--admin-key` flag + `RATATOSKR_ADMIN_API_KEY` env → new `ParsedArgs.admin_key`. New "Bifrost" TabPane + `_format_bifrost_state` + `_hydrate_bifrost_state` best-effort worker (mirror `_hydrate_session_tools`) UNCONDITIONALLY in on_mount → writes {endpoint, connected, caps_granted, tools} + audits; self-labels "not configured" (no admin key) / "not bound" (404) / graceful on 403 + error. Contract #2 amended (FN, validated OK) + TDD (4 wrapper respx tests incl. the admin-bearer-override assertion + 1 format unit + 3 hydrate integration). Suite **552 green**; my code ruff-clean (pre-existing tui.py ruff debt at other lines untouched, incl. a dead `RichText` import in `_hydrate_persona`). **LIVE-AUTH-PROVEN** on personal :8081: admin key authenticated (reached resource-layer 404 session_not_found, NOT 401/403) → `admin.sessions.read` works live; 200 full-state not exercised (no bound session on :8081 now — unit-covered). Patch bump (debug feature, no downstream coordination; consistent with the session's cadence — but the §5-core-completion angle is a possible minor, operator's call).
+- `[2026-07-01]` **LEDGER CORRECTION: #11 (AdminEvents) is NO LONGER BLOCKED.** Verified via `GET /me` on :8081 that `RATATOSKR_ADMIN_API_KEY` (`ratatoskr-readonly`, tier readonly-admin) carries ALL 7 read scopes INCLUDING **`admin.events.read`** (+ `admin.sessions.read`, admin.keys.read, admin.skuld.read, pending.read, search.read, tool_events.read). The coverage-map + prior memory had #11 "blocked on admin.events.read" — **STALE**; the admin key was minted (post-#11-filing, env.sh) WITH the scope, so the blocker is already satisfied. **Only the AdminEvents SSE pane itself is unbuilt** — the last unbuilt §5 debug pane (a live SSE-consuming admin pane, distinct from the hydrate-at-attach panes). Coverage-map updated. **Coverage: REST 11/40 ✅.** Consider building the AdminEvents pane and/or updating #11's tracker status (its stated blocker is gone).
+
+- `[2026-07-01]` **AdminEvents pane SHIPPED (`v0.18.11`) — `GET /admin/events` SSE in a new TUI pane; #11 closed-by-build; Tier 1 (debug-observability core) COMPLETE.** `stream_admin_events(client, *, admin_key, last_event_id=None)` (sse_client.py) — a NEW long-lived SSE consumer for the admin lifecycle broadcast (envelope `{id,type,timestamp,data}`, 17-event v0 vocab), admin-scoped (`admin.events.read`, bearer-override), Last-Event-ID resume; non-200→SseConnectFailed, mid-drop→SseConnectionDropped; new `AdminEvent` dataclass (distinct from the turn `Event` union). New "AdminEvents" TabPane + `_format_admin_event` + `_admin_event_matches` (design-brief §6 filter: active-session events + non-heartbeat `system.*`) + `_stream_admin_events` long-lived best-effort worker (unconditional on_mount, cancelled on app exit; self-labels "not configured"/"unavailable"/"stream ended"). Reuses the admin key from the BifrostState slice. **Contract-SKIPPED** for `stream_admin_events` (out of contract #1's turn-SSE scope; spec § Admin Event Stream is the reference; well-TDD'd). TDD: 4 sse_client tests (multi-event+bearer-override, Last-Event-ID header, 403, malformed-skip) + 5 tui (format, filter, worker success/no-key/403). Suite **561 green**; my code ruff-clean (pre-existing tui.py ruff debt untouched, incl. the dead `RichText` import in `_hydrate_persona`). **LIVE-AUTH-PROVEN**: `GET /admin/events` on :8081 → HTTP 200 under the admin key (connected + streamed, idle in the 4s window — no 401/403). **Coverage: REST 12/40 ✅. Tier 1 admin/debug-observability core COMPLETE** (Persona · Tools · BifrostState · AdminEvents). AdminEvents work landed as patch `v0.18.11`; then **`v0.19.0` MINOR cut (operator-approved 2026-07-01)** publishing the milestone: **the debug-observability core is complete** (Persona · Tools · BifrostState · AdminEvents all built + consuming real endpoints — the design-brief's headline deliverable). Pre-1.0 minor = release-note-worthy (no downstream althing push needed pre-1.0); lightweight tag per the SemVer mechanics (annotated reserved for major cuts). Remaining in-scope client I/O: only Tier-2 (transient-characters routing + `POST /sessions/{id}/persona_state`).
+
 _41 older entries (2026-05-* — the original debug-TUI/web build era) archived to archival-memory.md._
 
 _For per-issue TDD implementation notes, Volva findings, and contract amendments, see the git log — every per-issue commit carries a structured message capturing the trail._

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "ratatoskr"
-version = "0.18.7"
+version = "0.19.0"
 description = "Worldtree Conversation API debug TUI — multi-pane observability dashboard"
 readme = "README.md"
 requires-python = ">=3.12"

src/ratatoskr/cli.py

@@ -12,7 +12,7 @@ import signal
 import sys
 from dataclasses import dataclass, field
 from importlib.metadata import PackageNotFoundError, version
-from typing import TextIO
+from typing import Any, TextIO
 
 import httpx
 
@@ -24,6 +24,8 @@ from ratatoskr.sessions import (
     SessionApiFailed,
     create_session,
     endpoint_for_plane,
+    get_capabilities,
+    get_me,
 )
 from ratatoskr.sse_client import (
     AffectUpdate,
@@ -97,6 +99,13 @@ class ParsedArgs:
     bifrost: BifrostBinding | None = None
     bifrost_plane: str | None = None
     consumer_key: str | None = None
+    # Standalone boot-time orientation probe: GET /me + GET /capabilities, print,
+    # exit. Mutually exclusive with the session/turn flags (opens no session).
+    whoami: bool = False
+    # Optional admin-tier key (RATATOSKR_ADMIN_API_KEY / --admin-key) for the
+    # admin-scoped inspection reads (BifrostState pane, GET /admin/sessions/…).
+    # None when unset — the BifrostState pane then shows "admin key not configured".
+    admin_key: str | None = None
 
 
 class _ArgparseError(Exception):
@@ -121,6 +130,8 @@ def _parse_args(argv: list[str] | None) -> ParsedArgs:
     parser.add_argument("--api-key", dest="api_key")
     parser.add_argument("--server")
     parser.add_argument("--raw", action="store_true")
+    parser.add_argument("--whoami", action="store_true")
+    parser.add_argument("--admin-key", dest="admin_key")
     # Issue #5: required for per-end-user agents (lofn etc.); optional otherwise (mimir).
     parser.add_argument("--end-user-id", dest="end_user_id", default=None)
     # Issue #17: bind the created session to our own Bifrost provider plane.
@@ -141,6 +152,13 @@ def _parse_args(argv: list[str] | None) -> ParsedArgs:
     # Issue #5 INV-001: --end-user-id, if passed, MUST be non-empty (mirrors --send).
     if ns.end_user_id is not None and not ns.end_user_id:
         raise UsageError("--end-user-id must be non-empty when passed")
+    if ns.whoami:
+        # Standalone boot-time probe (GET /me + /capabilities): opens no session.
+        if ns.send is not None or ns.session or ns.new or ns.agent:
+            raise UsageError(
+                "--whoami is a standalone probe (no --send/--session/--new/--agent)"
+            )
+    else:
         if ns.session and ns.new:
             raise UsageError("--session and --new are mutually exclusive")
         if not ns.session and not ns.new:
@@ -150,7 +168,9 @@ def _parse_args(argv: list[str] | None) -> ParsedArgs:
             if ns.send is not None:
                 raise UsageError("--send requires --session or --new (no interactive picker)")
             if ns.agent:
-            raise UsageError("--agent belongs with --new; bare TUI mode opens the session picker")
+                raise UsageError(
+                    "--agent belongs with --new; bare TUI mode opens the session picker"
+                )
         if ns.session and ns.agent:
             raise UsageError("--agent is required with --new and forbidden with --session")
         if ns.new and not ns.agent and ns.send is not None:
@@ -193,6 +213,9 @@ def _parse_args(argv: list[str] | None) -> ParsedArgs:
         bifrost = BifrostBinding(endpoint_url=endpoint_for_plane(ns.bifrost_plane, host))
         bifrost_plane = ns.bifrost_plane
     consumer_key = os.environ.get("RATATOSKR_BIFROST_CONSUMER_KEY") or None
+    # Admin-tier key for the admin-scoped inspection reads (BifrostState pane).
+    # Flag > env > None; None leaves the admin panes showing "not configured".
+    admin_key = ns.admin_key or os.environ.get("RATATOSKR_ADMIN_API_KEY") or None
 
     return ParsedArgs(
         send_content=ns.send,
@@ -206,6 +229,8 @@ def _parse_args(argv: list[str] | None) -> ParsedArgs:
         bifrost=bifrost,
         bifrost_plane=bifrost_plane,
         consumer_key=consumer_key,
+        whoami=ns.whoami,
+        admin_key=admin_key,
     )
 
 
@@ -556,6 +581,56 @@ async def _amain(args: ParsedArgs) -> int:
             loop.remove_signal_handler(signal.SIGINT)
 
 
+def _format_whoami(me: dict[str, Any], caps: dict[str, Any]) -> str:
+    """Render the --whoami report: identity (GET /me) + server capabilities."""
+    lines = ["identity:"]
+    lines.append(f"  user_id: {me.get('user_id', '?')}")
+    lines.append(f"  tier: {me.get('tier', '?')}")
+    lines.append(f"  scopes: {', '.join(me.get('scopes', [])) or '(none)'}")
+    for k in ("display_name", "key_id", "key_label"):
+        if k in me:
+            lines.append(f"  {k}: {me[k]}")
+    lines.append("capabilities:")
+    templates = caps.get("ephemeral_templates", {})
+    if templates:
+        for name, spec in templates.items():
+            models = ", ".join(spec.get("allowed_models", []))
+            lines.append(
+                f"  ephemeral_template {name}: default={spec.get('default_model', '?')} "
+                f"max_bytes={spec.get('system_prompt_max_bytes', '?')} models=[{models}]"
+            )
+    else:
+        lines.append("  (no ephemeral templates advertised)")
+    return "\n".join(lines) + "\n"
+
+
+async def _whoami(args: ParsedArgs) -> int:
+    """--whoami one-shot: GET /me + GET /capabilities, print a compact report, exit.
+
+    A boot-time orientation probe (mirrors --send's non-interactive shape):
+    "who am I against this server, and what does it offer." Opens no session.
+    Errors land on stderr with the same [session_api_failed] / [network_error]
+    vocab + exit codes as the other modes.
+    """
+    assert isinstance(args, ParsedArgs)
+    async with httpx.AsyncClient(
+        base_url=args.server_url,
+        headers={"Authorization": f"Bearer {args.api_key}", "User-Agent": USER_AGENT},
+        timeout=httpx.Timeout(connect=10.0, read=10.0, write=10.0, pool=10.0),
+    ) as client:
+        try:
+            me = await get_me(client)
+            caps = await get_capabilities(client)
+        except SessionApiFailed as exc:
+            sys.stderr.write(f"[session_api_failed] status={exc.status} body={exc.body!r}\n")
+            return 20
+        except (httpx.ConnectError, httpx.ReadTimeout, httpx.TransportError) as exc:
+            sys.stderr.write(f"[network_error] {type(exc).__name__}: {exc}\n")
+            return 21
+        sys.stdout.write(_format_whoami(me, caps))
+    return 0
+
+
 def main(argv: list[str] | None = None) -> int:
     """Sync entry point. Maps UsageError/_AuthError to exit codes BEFORE the event loop."""
     assert argv is None or all(isinstance(a, str) for a in argv)
@@ -571,6 +646,8 @@ def main(argv: list[str] | None = None) -> int:
         # argparse's --help / --version short-circuit via SystemExit(0). Pass the code
         # through verbatim — argparse already printed help to stdout.
         return int(exc.code) if exc.code is not None else 0
+    if args.whoami:
+        return asyncio.run(_whoami(args))
     if args.send_content is None:
         # TUI mode — lazy import preserves INV-001 (no textual in cli at module scope).
         from ratatoskr.tui import run_tui

src/ratatoskr/sessions.py

@@ -406,3 +406,78 @@ async def get_persona_state(
     if resp.status_code == 403 and error_code == "auth_scope_denied":
         raise AuthScopeDenied(scope="persona.read")
     raise SessionApiFailed(status=resp.status_code, body=resp.content)
+
+
+async def get_me(client: httpx.AsyncClient) -> dict[str, Any]:
+    """GET /me — the authenticated principal's identity + key metadata (spec §GET /me).
+
+    Boot-time whoami: verify the key without agent-config side effects. Returns
+    the parsed dict verbatim (freeform per the frozen OpenAPI; the spec documents
+    `{user_id, scopes, tier, display_name?, key_id?, key_label?, ...}`, optional
+    fields omitted-not-null). 401 (bad/absent key when auth is enabled) — like
+    every other non-200 — surfaces as SessionApiFailed (get_persona_state
+    precedent). Read-only, rate-exempt, no audit emission.
+    """
+    assert client is not None
+    resp = await client.get("/me")
+    if resp.status_code == 200:
+        return resp.json()
+    raise SessionApiFailed(status=resp.status_code, body=resp.content)
+
+
+async def get_session_bifrost(
+    client: httpx.AsyncClient, session_id: str, *, admin_key: str
+) -> dict[str, Any]:
+    """GET /admin/sessions/{session_id}/bifrost — admin-scoped Bifrost dispatch state (#176).
+
+    Returns the live Bifrost binding for a session: `{endpoint_url, consumer_id,
+    connected, capabilities_granted, tools: [{name, description}]}`. Requires the
+    `admin.sessions.read` scope (admin tier), so the request OVERRIDES the
+    Authorization header with `admin_key` (distinct from the client's default
+    consumer key). Read-only (audited server-side). Parsed dict verbatim; any
+    non-200 → SessionApiFailed — notably 403 `auth_scope_denied` (key lacks the
+    scope) and 404 `session_not_bifrost_bound` (session exists, no live client).
+    """
+    assert client is not None
+    assert session_id and isinstance(session_id, str)
+    assert admin_key and isinstance(admin_key, str)
+    resp = await client.get(
+        f"/admin/sessions/{session_id}/bifrost",
+        headers={"Authorization": f"Bearer {admin_key}"},
+    )
+    if resp.status_code == 200:
+        return resp.json()
+    raise SessionApiFailed(status=resp.status_code, body=resp.content)
+
+
+async def get_session_tools(client: httpx.AsyncClient, session_id: str) -> dict[str, Any]:
+    """GET /sessions/{session_id}/tools — owner-scoped tool inventory (spec #183).
+
+    Returns the merged tool list the LLM saw at turn-fire: `{agent_id,
+    builtin_tools: [...], bifrost_tools: [{name, description, parameters}, ...]}`.
+    Owner-scoped (`ctx.user_id == session.user_id`) — reachable with the consumer
+    key, NO admin scope. Cross-owner access returns 404 `session_not_found`
+    (existence-hiding); a revoked session returns 401 `auth_revoked`. Parsed dict
+    verbatim; any non-200 → SessionApiFailed (mirrors get_persona_state).
+    """
+    assert client is not None
+    assert session_id and isinstance(session_id, str)
+    resp = await client.get(f"/sessions/{session_id}/tools")
+    if resp.status_code == 200:
+        return resp.json()
+    raise SessionApiFailed(status=resp.status_code, body=resp.content)
+
+
+async def get_capabilities(client: httpx.AsyncClient) -> dict[str, Any]:
+    """GET /capabilities — server capability discovery (spec §Ephemeral Templates).
+
+    Returns `{ephemeral_templates: {echo: {allowed_models, default_model,
+    system_prompt_max_bytes}}}` — what the server offers before a client decides
+    to instantiate. Any authenticated caller may read it (no scope). Parsed dict
+    verbatim; any non-200 → SessionApiFailed.
+    """
+    assert client is not None
+    resp = await client.get("/capabilities")
+    if resp.status_code == 200:
+        return resp.json()
+    raise SessionApiFailed(status=resp.status_code, body=resp.content)

src/ratatoskr/sse_client.py

@@ -175,6 +175,23 @@ Event = (
 )
 
 
+@dataclass(frozen=True)
+class AdminEvent:
+    """One `/admin/events` envelope (INV-046) — an admin-tier lifecycle event.
+
+    Distinct from the turn-stream `Event` union: this is the process-wide admin
+    broadcast stream, not a per-turn stream. `id` is a plain monotonic int
+    (resets on restart; heartbeats have id=0). `type` is a dotted namespace
+    (session.* / turn.* / key.* / system.*). `data` is a type-specific dict —
+    most carry `session_id`; per INV-049 it holds IDs + small metadata only.
+    """
+
+    id: int
+    type: str
+    timestamp: str | None
+    data: dict[str, Any]
+
+
 class MalformedSseId(Exception):
     """Raised when an SSE event's `id:` wire field is missing or non-composite."""
 
@@ -598,6 +615,51 @@ async def stream_turn_resilient(
             )
 
 
+async def stream_admin_events(
+    client: httpx.AsyncClient,
+    *,
+    admin_key: str,
+    last_event_id: int | None = None,
+) -> AsyncIterator[AdminEvent]:
+    """GET /admin/events SSE — the admin-tier lifecycle broadcast stream (INV-046).
+
+    Yields `AdminEvent` envelopes as they arrive. Admin-scoped (admin.events.read):
+    the request OVERRIDES Authorization with `admin_key` (distinct from the
+    client's default consumer bearer). `last_event_id` sets the `Last-Event-ID`
+    header for resume (plain decimal int). Long-lived — iterate until the caller
+    stops or the connection ends. Non-200 → SseConnectFailed; a mid-stream drop
+    → SseConnectionDropped (caller may reconnect from the last-seen `AdminEvent.id`).
+    Malformed frames are skipped (best-effort stream).
+    """
+    assert client is not None
+    assert admin_key and isinstance(admin_key, str)
+    headers = {"Authorization": f"Bearer {admin_key}"}
+    if last_event_id is not None:
+        headers["Last-Event-ID"] = str(last_event_id)
+    async with httpx_sse.aconnect_sse(
+        client, "GET", "/admin/events", headers=headers
+    ) as event_source:
+        if event_source.response.status_code != 200:
+            body = await event_source.response.aread()
+            raise SseConnectFailed(status=event_source.response.status_code, body=body)
+        try:
+            async for sse in event_source.aiter_sse():
+                if sse.data == "":
+                    continue
+                try:
+                    env = json.loads(sse.data)
+                except json.JSONDecodeError:
+                    continue  # skip a malformed admin frame (best-effort)
+                yield AdminEvent(
+                    id=env.get("id", 0),
+                    type=env["type"],
+                    timestamp=env.get("timestamp"),
+                    data=env.get("data", {}),
+                )
+        except (httpx.ReadError, httpx.RemoteProtocolError, httpx.ReadTimeout) as exc:
+            raise SseConnectionDropped(last_seen_sse_id=None) from exc
+
+
 def _parse_sse_id(raw: str) -> SseId:
     """Parse the SSE wire `id:` as composite `{turn_id}:{seq}`. See contract FN _parse_sse_id."""
     assert isinstance(raw, str)

src/ratatoskr/tui.py

@@ -45,10 +45,13 @@ from ratatoskr.sessions import (
     SessionInfo,
     create_session,
     get_persona_state,
+    get_session_bifrost,
+    get_session_tools,
     list_agents,
     list_sessions,
 )
 from ratatoskr.sse_client import (
+    AdminEvent,
     AffectUpdate,
     AwaitingLlmFirstToken,
     CancelAlreadyCompleted,
@@ -70,6 +73,7 @@ from ratatoskr.sse_client import (
     TurnIdFlip,
     WorkerPhase,
     cancel_turn,
+    stream_admin_events,
     stream_turn_resilient,
 )
 
@@ -196,6 +200,46 @@ def _ts() -> str:
     return now.strftime("%H:%M:%S") + f".{now.microsecond // 1000:03d}"
 
 
+def _format_admin_event(ev: AdminEvent) -> str:
+    """One-line render of an /admin/events envelope for the AdminEvents pane.
+
+    Drops `session_id` from the detail (the pane is already session-scoped) and
+    shows HH:MM:SS from the ISO timestamp + the remaining small metadata fields.
+    """
+    ts = (ev.timestamp or "")[11:19]
+    extras = " ".join(f"{k}={v}" for k, v in ev.data.items() if k != "session_id")
+    return f"[{ts}] {ev.type} {extras}".rstrip()
+
+
+def _format_bifrost_state(state: dict) -> list[str]:
+    """Render GET /admin/sessions/{id}/bifrost (#176) into BifrostState-pane lines."""
+    tools = [t.get("name", "?") for t in state.get("tools", [])]
+    caps = state.get("capabilities_granted", [])
+    return [
+        f"bifrost binding: connected={state.get('connected')} "
+        f"consumer={state.get('consumer_id', '?')}",
+        f"  endpoint: {state.get('endpoint_url', '?')}",
+        f"  caps_granted: {', '.join(caps) or '(none)'}",
+        f"  tools ({len(tools)}): {', '.join(tools) or '(none)'}",
+    ]
+
+
+def _format_tool_inventory(tools: dict) -> list[str]:
+    """Render GET /sessions/{id}/tools (#183) into Tools-pane inventory lines.
+
+    The merged tool list the LLM saw at turn-fire — distinct from the live
+    tool_start/tool_result events that stream into the same pane during a turn.
+    """
+    builtin = [t.get("name", "?") for t in tools.get("builtin_tools", [])]
+    bifrost = [t.get("name", "?") for t in tools.get("bifrost_tools", [])]
+    return [
+        f"session tool inventory: agent={tools.get('agent_id', '?')} "
+        f"builtin={len(builtin)} bifrost={len(bifrost)}",
+        f"  builtin: {', '.join(builtin) or '(none)'}",
+        f"  bifrost: {', '.join(bifrost) or '(none)'}",
+    ]
+
+
 def _format_persona_header(snapshot: dict) -> str:
     """One-line persona summary for the sticky header widget.
 
@@ -1022,7 +1066,7 @@ class RatatoskrApp(App[int]):
     /* v0.8.1: #current-text Static removed. Streaming text now coalesces
        on `\n` and writes directly to #transcript (same pattern as v0.7.1
        thinking fix). Eliminates the dock-bottom-growth-overlap bug. */
-    #tools-log, #debug-log, #thinking-log {
+    #tools-log, #debug-log, #thinking-log, #bifrost-log, #admin-events-log {
         background: $background;
         padding: 0 1;
     }
@@ -1187,6 +1231,24 @@ class RatatoskrApp(App[int]):
                             id="persona-log", wrap=True, markup=False,
                             highlight=False, min_width=0,
                         )
+                    with TabPane("Bifrost", id="bifrost-tab"):
+                        # #176: admin-scoped Bifrost dispatch state (endpoint,
+                        # connected, granted caps, tools) via
+                        # GET /admin/sessions/{id}/bifrost. Hydrated on mount
+                        # with the admin key; "not configured" when absent.
+                        yield RichLog(
+                            id="bifrost-log", wrap=True, markup=False,
+                            highlight=False, min_width=0,
+                        )
+                    with TabPane("AdminEvents", id="admin-events-tab"):
+                        # #11: live GET /admin/events SSE stream, admin-scoped,
+                        # FILTERED to the active session (design-brief §6). A
+                        # long-lived worker appends matching lifecycle events;
+                        # "not configured" when no admin key is set.
+                        yield RichLog(
+                            id="admin-events-log", wrap=True, markup=False,
+                            highlight=False, min_width=0,
+                        )
         # INV-002 + INV-003: visible identity + hint widgets (Footer-area).
         # pane-name widget displays current side-pane name.
         yield Static("", id="identity")
@@ -1240,6 +1302,17 @@ class RatatoskrApp(App[int]):
         # surface (PersonaNotConfigured) get a placeholder + empty header.
         if self.agent_id is not None:
             self.run_worker(self._hydrate_persona())
+        # #183: hydrate the Tools pane with the session's tool inventory via
+        # GET /sessions/{id}/tools (owner-scoped — consumer key, no admin scope).
+        # Unconditional: every session has a tool inventory to introspect.
+        self.run_worker(self._hydrate_session_tools())
+        # #176: hydrate the BifrostState pane via GET /admin/sessions/{id}/bifrost
+        # (admin-scoped). Self-labels "not configured" when no admin key is set,
+        # "not bound" for the common unbound-session 404 — always writes at mount.
+        self.run_worker(self._hydrate_bifrost_state())
+        # #11: long-lived worker streaming GET /admin/events into the AdminEvents
+        # pane, filtered to this session. Admin-key-gated; cancelled on app exit.
+        self.run_worker(self._stream_admin_events())
 
     async def _hydrate_persona(self) -> None:
         """Hydrate persona-header + Persona pane via GET /agents/{id}/persona_state.
@@ -1275,6 +1348,128 @@ class RatatoskrApp(App[int]):
                 f"err={type(exc).__name__}: {exc!s:.120}"
             )
 
+    async def _hydrate_session_tools(self) -> None:
+        """Hydrate the Tools pane inventory via GET /sessions/{id}/tools (#183).
+
+        Best-effort observability (mirrors _hydrate_persona): on 200, writes the
+        merged tool inventory (builtin + bifrost) the LLM saw at turn-fire into
+        the Tools pane + audits; on any failure, audits and moves on — never
+        crashes the TUI. Owner-scoped, so reachable with the consumer key.
+        """
+        assert self.client is not None and self.session_id is not None
+        from rich.text import Text as RichText
+
+        try:
+            tools = await get_session_tools(self.client, self.session_id)
+        except Exception as exc:  # best-effort — never crash the TUI on hydrate
+            self._audit(
+                f"session_tools_hydration_failed session={self.session_id[-8:]} "
+                f"err={type(exc).__name__}: {exc!s:.120}"
+            )
+            return
+        log = self.query_one("#tools-log", RichLog)
+        for line in _format_tool_inventory(tools):
+            log.write(RichText(line))
+        self._audit(
+            f"session_tools_hydrated session={self.session_id[-8:]} "
+            f"builtin={len(tools.get('builtin_tools', []))} "
+            f"bifrost={len(tools.get('bifrost_tools', []))}"
+        )
+
+    async def _hydrate_bifrost_state(self) -> None:
+        """Hydrate the BifrostState pane via GET /admin/sessions/{id}/bifrost (#176).
+
+        Admin-scoped (admin.sessions.read) — uses `self.args.admin_key`. Best-effort
+        (mirrors _hydrate_session_tools): on 200 writes the live binding (endpoint,
+        connected, granted caps, tools) + audits; on failure a labeled line + audit,
+        never crashes. No admin key → "not configured". 404 session_not_bifrost_bound
+        is the routine unbound-session case; 403 means the key lacks the scope.
+        """
+        assert self.client is not None and self.session_id is not None
+        from rich.text import Text as RichText
+
+        log = self.query_one("#bifrost-log", RichLog)
+        admin_key = getattr(self.args, "admin_key", None)
+        if not admin_key:
+            log.write(
+                RichText("(admin key not configured — set RATATOSKR_ADMIN_API_KEY)")
+            )
+            self._audit(
+                f"bifrost_state_skipped session={self.session_id[-8:]} reason=no_admin_key"
+            )
+            return
+        try:
+            state = await get_session_bifrost(
+                self.client, self.session_id, admin_key=admin_key
+            )
+        except SessionApiFailed as exc:
+            label = (
+                "(session not bound to Bifrost)"
+                if exc.status == 404
+                else f"(bifrost state unavailable: HTTP {exc.status})"
+            )
+            log.write(RichText(label))
+            self._audit(
+                f"bifrost_state_unavailable session={self.session_id[-8:]} status={exc.status}"
+            )
+            return
+        except Exception as exc:  # best-effort — never crash the TUI on hydrate
+            log.write(RichText(f"(bifrost state hydration failed: {type(exc).__name__})"))
+            self._audit(
+                f"bifrost_state_hydration_failed session={self.session_id[-8:]} "
+                f"err={type(exc).__name__}: {exc!s:.120}"
+            )
+            return
+        for line in _format_bifrost_state(state):
+            log.write(RichText(line))
+        self._audit(
+            f"bifrost_state_hydrated session={self.session_id[-8:]} "
+            f"connected={state.get('connected')} tools={len(state.get('tools', []))}"
+        )
+
+    def _admin_event_matches(self, ev: AdminEvent) -> bool:
+        """AdminEvents filter (design-brief §6): active-session events + non-heartbeat
+        system.* (stream-integrity signals). Heartbeats are keepalive noise."""
+        if ev.type == "system.heartbeat":
+            return False
+        if ev.type.startswith("system."):
+            return True
+        return ev.data.get("session_id") == self.session_id
+
+    async def _stream_admin_events(self) -> None:
+        """Stream GET /admin/events (admin-scoped) into the AdminEvents pane (#11).
+
+        Long-lived + best-effort (never crashes the TUI). Filtered to the active
+        session (design-brief §6): appends matching lifecycle events as they
+        arrive. No admin key → "not configured". On connect failure (e.g. 403
+        scope-denied) or a mid-stream drop, writes a labeled line and stops.
+        """
+        assert self.client is not None and self.session_id is not None
+        from rich.text import Text as RichText
+
+        log = self.query_one("#admin-events-log", RichLog)
+        admin_key = getattr(self.args, "admin_key", None)
+        if not admin_key:
+            log.write(RichText("(admin key not configured — set RATATOSKR_ADMIN_API_KEY)"))
+            self._audit(
+                f"admin_events_skipped session={self.session_id[-8:]} reason=no_admin_key"
+            )
+            return
+        try:
+            async for ev in stream_admin_events(self.client, admin_key=admin_key):
+                if self._admin_event_matches(ev):
+                    log.write(RichText(_format_admin_event(ev)))
+        except SseConnectFailed as exc:
+            log.write(RichText(f"(admin events unavailable: HTTP {exc.status})"))
+            self._audit(
+                f"admin_events_unavailable session={self.session_id[-8:]} status={exc.status}"
+            )
+        except Exception as exc:  # drop / best-effort — never crash the TUI
+            log.write(RichText(f"(admin events stream ended: {type(exc).__name__})"))
+            self._audit(
+                f"admin_events_ended session={self.session_id[-8:]} err={type(exc).__name__}"
+            )
+
     def _update_persona_surfaces(self, snapshot: dict) -> None:
         """Update sticky header + Persona pane from a fresh snapshot.
 

tests/test_cli.py

@@ -1564,3 +1564,72 @@ class TestBifrostBindCli:
         )
         rc = await _amain(args)
         assert rc == 22
+
+
+class TestWhoami:
+    """--whoami one-shot probe (slice: capabilities+me): GET /me + GET /capabilities."""
+
+    def test_whoami_standalone_accepted(self) -> None:
+        """whoami_standalone_accepted: --whoami alone → valid; whoami=True, no turn flags."""
+        args = _parse_args(["--whoami", "--api-key", "k"])
+        assert args.whoami is True
+        assert args.send_content is None
+        assert args.session_id is None
+        assert args.new is False
+
+    def test_whoami_with_send_rejected(self) -> None:
+        """whoami_with_send_rejected [adversarial]: --whoami + --send → UsageError."""
+        with pytest.raises(UsageError, match="standalone probe"):
+            _parse_args(["--whoami", "--send", "hi", "--api-key", "k"])
+
+    def test_whoami_with_new_rejected(self) -> None:
+        """whoami_with_new_rejected [adversarial]: --whoami + --new → UsageError."""
+        with pytest.raises(UsageError, match="standalone probe"):
+            _parse_args(["--whoami", "--new", "--agent", "m", "--api-key", "k"])
+
+    @respx.mock
+    def test_whoami_mode_prints_report(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """whoami_mode_prints_report [happy,tracer]: /me + /capabilities → stdout report; exit 0."""
+        respx.get("https://w.example/me").mock(
+            return_value=httpx.Response(
+                200,
+                json={
+                    "user_id": "alice",
+                    "scopes": ["conversations.read", "conversations.write"],
+                    "tier": "user",
+                    "key_id": "a1b2c3d4",
+                },
+            )
+        )
+        respx.get("https://w.example/capabilities").mock(
+            return_value=httpx.Response(
+                200,
+                json={
+                    "ephemeral_templates": {
+                        "echo": {
+                            "allowed_models": ["glm5-turbo"],
+                            "default_model": "glm5-turbo",
+                            "system_prompt_max_bytes": 32768,
+                        }
+                    }
+                },
+            )
+        )
+        rc = main(["--whoami", "--api-key", "k", "--server", "https://w.example"])
+        assert rc == 0
+        out = capsys.readouterr().out
+        assert "user_id: alice" in out
+        assert "tier: user" in out
+        assert "key_id: a1b2c3d4" in out
+        assert "ephemeral_template echo" in out
+        assert "glm5-turbo" in out
+
+    @respx.mock
+    def test_whoami_me_auth_failure_exits_20(self, capsys: pytest.CaptureFixture[str]) -> None:
+        """whoami_me_auth_failure [error]: /me 401 → exit 20 [session_api_failed]."""
+        respx.get("https://w.example/me").mock(
+            return_value=httpx.Response(401, json={"detail": "auth_invalid"})
+        )
+        rc = main(["--whoami", "--api-key", "k", "--server", "https://w.example"])
+        assert rc == 20
+        assert "[session_api_failed]" in capsys.readouterr().err

tests/test_sessions.py

@@ -18,7 +18,11 @@ from ratatoskr.sessions import (
     SessionPage,
     create_session,
     endpoint_for_plane,
+    get_capabilities,
+    get_me,
     get_persona_state,
+    get_session_bifrost,
+    get_session_tools,
     list_agents,
     list_sessions,
 )
@@ -896,3 +900,205 @@ class TestGetPersonaState:
             with pytest.raises(PersonaNotConfigured) as exc_info:
                 await get_persona_state(client, "domari")
         assert exc_info.value.agent_id == "domari"
+
+
+class TestGetMe:
+    """docs/contracts/issues/2.contract.md FN get_me (slice: capabilities+me)."""
+
+    @respx.mock
+    async def test_happy_authenticated(self) -> None:
+        """happy_authenticated [happy,tracer]: 200 → parsed identity dict verbatim."""
+        respx.get("https://w.example/me").mock(
+            return_value=httpx.Response(
+                200,
+                json={
+                    "user_id": "alice",
+                    "scopes": ["conversations.read", "conversations.write"],
+                    "tier": "user",
+                    "key_id": "a1b2c3d4",
+                    "key_label": "alice phone",
+                },
+            )
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            me = await get_me(client)
+        assert me["user_id"] == "alice"
+        assert me["tier"] == "user"
+        assert me["key_id"] == "a1b2c3d4"
+        assert me["scopes"] == ["conversations.read", "conversations.write"]
+
+    @respx.mock
+    async def test_anonymous_dev_mode(self) -> None:
+        """anonymous_dev_mode: 200 anonymous shape → dict with tier=anonymous."""
+        respx.get("https://w.example/me").mock(
+            return_value=httpx.Response(
+                200,
+                json={
+                    "user_id": "anonymous",
+                    "scopes": ["conversations.read"],
+                    "tier": "anonymous",
+                },
+            )
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            me = await get_me(client)
+        assert me["tier"] == "anonymous"
+        assert "key_id" not in me  # optional fields omitted, not null
+
+    @respx.mock
+    async def test_401_raises_session_api_failed(self) -> None:
+        """401_raises [error]: bad/absent key → SessionApiFailed(status=401)."""
+        respx.get("https://w.example/me").mock(
+            return_value=httpx.Response(401, json={"detail": "auth_invalid"})
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            with pytest.raises(SessionApiFailed) as exc:
+                await get_me(client)
+        assert exc.value.status == 401
+
+
+class TestGetCapabilities:
+    """docs/contracts/issues/2.contract.md FN get_capabilities (slice: capabilities+me)."""
+
+    @respx.mock
+    async def test_happy(self) -> None:
+        """happy [happy]: 200 → ephemeral_templates dict verbatim."""
+        respx.get("https://w.example/capabilities").mock(
+            return_value=httpx.Response(
+                200,
+                json={
+                    "ephemeral_templates": {
+                        "echo": {
+                            "allowed_models": ["glm5-turbo", "glm4.7"],
+                            "default_model": "glm5-turbo",
+                            "system_prompt_max_bytes": 32768,
+                        }
+                    }
+                },
+            )
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            caps = await get_capabilities(client)
+        echo = caps["ephemeral_templates"]["echo"]
+        assert echo["default_model"] == "glm5-turbo"
+        assert echo["system_prompt_max_bytes"] == 32768
+
+    @respx.mock
+    async def test_non_200_raises(self) -> None:
+        """non_200_raises [error]: 500 → SessionApiFailed(status=500)."""
+        respx.get("https://w.example/capabilities").mock(
+            return_value=httpx.Response(500, content=b"boom")
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            with pytest.raises(SessionApiFailed) as exc:
+                await get_capabilities(client)
+        assert exc.value.status == 500
+
+
+class TestGetSessionTools:
+    """docs/contracts/issues/2.contract.md — get_session_tools (GET /sessions/{id}/tools, #183)."""
+
+    @respx.mock
+    async def test_happy(self) -> None:
+        """happy [happy,tracer]: 200 → merged tool inventory dict verbatim."""
+        respx.get("https://w.example/sessions/s1/tools").mock(
+            return_value=httpx.Response(
+                200,
+                json={
+                    "agent_id": "alice:wizard",
+                    "builtin_tools": [],
+                    "bifrost_tools": [
+                        {"name": "bifrost.alice.set_field", "description": "d", "parameters": {}}
+                    ],
+                },
+            )
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            tools = await get_session_tools(client, "s1")
+        assert tools["agent_id"] == "alice:wizard"
+        assert tools["builtin_tools"] == []
+        assert tools["bifrost_tools"][0]["name"] == "bifrost.alice.set_field"
+
+    @respx.mock
+    async def test_cross_owner_404_raises(self) -> None:
+        """cross_owner_404 [error]: 404 session_not_found → SessionApiFailed(404)."""
+        respx.get("https://w.example/sessions/s1/tools").mock(
+            return_value=httpx.Response(404, json={"error_code": "session_not_found"})
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            with pytest.raises(SessionApiFailed) as exc:
+                await get_session_tools(client, "s1")
+        assert exc.value.status == 404
+
+    @respx.mock
+    async def test_empty_session_id_asserts(self) -> None:
+        """empty_session_id [adversarial]: '' → AssertionError; no HTTP issued."""
+        route = respx.get("https://w.example/sessions//tools").mock(
+            return_value=httpx.Response(200, json={})
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            with pytest.raises(AssertionError):
+                await get_session_tools(client, "")
+        assert route.call_count == 0
+
+
+class TestGetSessionBifrost:
+    """#2 contract — get_session_bifrost (GET /admin/sessions/{id}/bifrost, #176)."""
+
+    @respx.mock
+    async def test_happy_uses_admin_bearer(self) -> None:
+        """happy [happy,tracer]: 200 → binding dict; request carries the ADMIN bearer (override)."""
+        route = respx.get("https://w.example/admin/sessions/s1/bifrost").mock(
+            return_value=httpx.Response(
+                200,
+                json={
+                    "endpoint_url": "https://bifrost.example/mcp",
+                    "consumer_id": "alice",
+                    "connected": True,
+                    "capabilities_granted": ["tools:call", "tools:read"],
+                    "tools": [{"name": "bifrost.alice.echo", "description": "echo"}],
+                },
+            )
+        )
+        async with httpx.AsyncClient(
+            base_url="https://w.example",
+            headers={"Authorization": "Bearer consumer-key"},
+        ) as client:
+            state = await get_session_bifrost(client, "s1", admin_key="admin-xyz")
+        assert state["connected"] is True
+        assert state["tools"][0]["name"] == "bifrost.alice.echo"
+        # the request overrode the client's default consumer bearer with the admin key
+        assert route.calls[0].request.headers["Authorization"] == "Bearer admin-xyz"
+
+    @respx.mock
+    async def test_403_scope_denied(self) -> None:
+        """403 [error]: admin key lacks admin.sessions.read → SessionApiFailed(403)."""
+        respx.get("https://w.example/admin/sessions/s1/bifrost").mock(
+            return_value=httpx.Response(403, json={"error_code": "auth_scope_denied"})
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            with pytest.raises(SessionApiFailed) as exc:
+                await get_session_bifrost(client, "s1", admin_key="k")
+        assert exc.value.status == 403
+
+    @respx.mock
+    async def test_404_not_bound(self) -> None:
+        """404 [error]: session_not_bifrost_bound → SessionApiFailed(404)."""
+        respx.get("https://w.example/admin/sessions/s1/bifrost").mock(
+            return_value=httpx.Response(404, json={"error_code": "session_not_bifrost_bound"})
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            with pytest.raises(SessionApiFailed) as exc:
+                await get_session_bifrost(client, "s1", admin_key="k")
+        assert exc.value.status == 404
+
+    @respx.mock
+    async def test_empty_admin_key_asserts(self) -> None:
+        """empty_admin_key [adversarial]: '' → AssertionError; no HTTP issued."""
+        route = respx.get("https://w.example/admin/sessions/s1/bifrost").mock(
+            return_value=httpx.Response(200, json={})
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            with pytest.raises(AssertionError):
+                await get_session_bifrost(client, "s1", admin_key="")
+        assert route.call_count == 0

tests/test_sse_client.py

@@ -5,6 +5,7 @@ import pytest
 import respx
 
 from ratatoskr.sse_client import (
+    AdminEvent,
     AffectUpdate,
     AgentNotAvailable,
     AwaitingLlmFirstToken,
@@ -27,6 +28,7 @@ from ratatoskr.sse_client import (
     _parse_sse_id,
     cancel_turn,
     reconnect_turn,
+    stream_admin_events,
     stream_turn,
     stream_turn_resilient,
 )
@@ -1261,3 +1263,73 @@ class TestStreamTurnResilient:
                     collected.append(e)
         assert [e.sse_id for e in collected] == [SseId(42, 1)]  # type: ignore[attr-defined]
         assert route.call_count == 2
+
+
+class TestStreamAdminEvents:
+    """docs/conversation-api-spec.md § Admin Event Stream — stream_admin_events (#11)."""
+
+    @respx.mock
+    async def test_happy_multi_event_admin_bearer(self) -> None:
+        """happy [happy,tracer]: yields AdminEvent envelopes; request uses the ADMIN bearer."""
+        env1 = {
+            "id": 41, "type": "session.created", "timestamp": "2026-05-06T10:00:00.000Z",
+            "data": {"session_id": "s1", "agent_id": "mimir", "user_id": None},
+        }
+        env2 = {
+            "id": 42, "type": "turn.started", "timestamp": "2026-05-06T10:00:01.000Z",
+            "data": {"session_id": "s1", "turn_id": 7, "agent_id": "mimir", "user_id": None},
+        }
+        stream = _sse_chunk("41", env1) + _sse_chunk("42", env2)
+        route = respx.get("https://w.example/admin/events").mock(
+            return_value=httpx.Response(
+                200, headers={"content-type": "text/event-stream"}, content=stream
+            )
+        )
+        async with httpx.AsyncClient(
+            base_url="https://w.example", headers={"Authorization": "Bearer consumer"}
+        ) as client:
+            events = [e async for e in stream_admin_events(client, admin_key="admin-xyz")]
+        assert [e.type for e in events] == ["session.created", "turn.started"]
+        assert isinstance(events[0], AdminEvent)
+        assert events[0].id == 41
+        assert events[1].data["turn_id"] == 7
+        assert route.calls[0].request.headers["Authorization"] == "Bearer admin-xyz"
+
+    @respx.mock
+    async def test_last_event_id_header(self) -> None:
+        """last_event_id_header [trace]: empty stream → []; Last-Event-ID header sent."""
+        route = respx.get("https://w.example/admin/events").mock(
+            return_value=httpx.Response(
+                200, headers={"content-type": "text/event-stream"}, content=b""
+            )
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            events = [e async for e in stream_admin_events(client, admin_key="k", last_event_id=99)]
+        assert events == []
+        assert route.calls[0].request.headers["Last-Event-ID"] == "99"
+
+    @respx.mock
+    async def test_403_scope_denied(self) -> None:
+        """403 [error]: key lacks admin.events.read → SseConnectFailed(403)."""
+        respx.get("https://w.example/admin/events").mock(
+            return_value=httpx.Response(403, json={"error_code": "auth_scope_denied"})
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            with pytest.raises(SseConnectFailed) as exc:
+                _ = [e async for e in stream_admin_events(client, admin_key="k")]
+        assert exc.value.status == 403
+
+    @respx.mock
+    async def test_skips_malformed_frame(self) -> None:
+        """skips_malformed [adversarial]: a bad-JSON frame is skipped, not fatal."""
+        good = _sse_chunk("41", {"id": 41, "type": "session.created", "data": {"session_id": "s1"}})
+        bad = b"id: 42\ndata: not-json\n\n"
+        good2 = _sse_chunk("43", {"id": 43, "type": "session.deleted", "data": {"session_id": "s1"}})
+        respx.get("https://w.example/admin/events").mock(
+            return_value=httpx.Response(
+                200, headers={"content-type": "text/event-stream"}, content=good + bad + good2
+            )
+        )
+        async with httpx.AsyncClient(base_url="https://w.example") as client:
+            events = [e async for e in stream_admin_events(client, admin_key="k")]
+        assert [e.type for e in events] == ["session.created", "session.deleted"]

tests/test_tui.py

@@ -3167,3 +3167,273 @@ class TestBareSessionPicker:
         assert rc == 20
         assert "[session_api_failed]" in capsys.readouterr().err
         assert not opened
+
+
+class TestSessionToolsHydration:
+    """get_session_tools + the #183 Tools-pane inventory hydrate (GET /sessions/{id}/tools)."""
+
+    def test_format_tool_inventory(self) -> None:
+        """format_tool_inventory [unit]: header + builtin + bifrost lines."""
+        from ratatoskr.tui import _format_tool_inventory
+
+        lines = _format_tool_inventory(
+            {
+                "agent_id": "alice:wizard",
+                "builtin_tools": [],
+                "bifrost_tools": [{"name": "bifrost.x"}, {"name": "bifrost.y"}],
+            }
+        )
+        joined = "\n".join(lines)
+        assert "agent=alice:wizard" in joined
+        assert "builtin=0 bifrost=2" in joined
+        assert "builtin: (none)" in joined
+        assert "bifrost.x, bifrost.y" in joined
+
+    async def test_hydrate_writes_inventory_and_audits(
+        self, monkeypatch: pytest.MonkeyPatch
+    ) -> None:
+        """hydrate_writes_inventory [scenario,tracer]: 200 → inventory in Tools pane + audit."""
+        import ratatoskr.tui as tui_mod
+
+        writes = _spy_writes(monkeypatch)
+
+        async def fake_tools(client, session_id):
+            return {
+                "agent_id": "alice:wizard",
+                "builtin_tools": [],
+                "bifrost_tools": [{"name": "bifrost.set_field"}],
+            }
+
+        monkeypatch.setattr(tui_mod, "get_session_tools", fake_tools)
+        app = _resolved_app(_args_existing(session_id="s-tools-01"))
+        async with app.run_test() as pilot:
+            await pilot.pause()
+            await app._hydrate_session_tools()
+            await pilot.pause()
+        joined = " ".join(_text_of(w) for w in writes)
+        assert "session tool inventory" in joined
+        assert "bifrost.set_field" in joined
+        assert "session_tools_hydrated" in joined  # audit line landed
+
+    async def test_hydrate_failure_audits_no_crash(
+        self, monkeypatch: pytest.MonkeyPatch
+    ) -> None:
+        """hydrate_failure [error]: get_session_tools raises → failure audit; no crash."""
+        import ratatoskr.tui as tui_mod
+        from ratatoskr.sessions import SessionApiFailed
+
+        writes = _spy_writes(monkeypatch)
+
+        async def boom(client, session_id):
+            raise SessionApiFailed(status=404, body=b"session_not_found")
+
+        monkeypatch.setattr(tui_mod, "get_session_tools", boom)
+        app = _resolved_app(_args_existing(session_id="s-tools-02"))
+        async with app.run_test() as pilot:
+            await pilot.pause()
+            await app._hydrate_session_tools()
+            await pilot.pause()
+        joined = " ".join(_text_of(w) for w in writes)
+        assert "session_tools_hydration_failed" in joined
+
+
+class TestBifrostStateHydration:
+    """get_session_bifrost + the #176 BifrostState pane (GET /admin/sessions/{id}/bifrost)."""
+
+    @staticmethod
+    def _mute_tools(monkeypatch: pytest.MonkeyPatch) -> None:
+        """Neutralize the on_mount Tools-pane worker so it makes no real call."""
+        import ratatoskr.tui as tui_mod
+
+        async def noop(client, session_id):
+            return {"agent_id": "x", "builtin_tools": [], "bifrost_tools": []}
+
+        monkeypatch.setattr(tui_mod, "get_session_tools", noop)
+
+    def test_format_bifrost_state(self) -> None:
+        """format_bifrost_state [unit]: connected / endpoint / caps / tools lines."""
+        from ratatoskr.tui import _format_bifrost_state
+
+        lines = _format_bifrost_state(
+            {
+                "endpoint_url": "https://b/mcp",
+                "consumer_id": "alice",
+                "connected": True,
+                "capabilities_granted": ["tools:call", "tools:read"],
+                "tools": [{"name": "bifrost.echo"}],
+            }
+        )
+        joined = "\n".join(lines)
+        assert "connected=True" in joined
+        assert "consumer=alice" in joined
+        assert "https://b/mcp" in joined
+        assert "tools:call, tools:read" in joined
+        assert "bifrost.echo" in joined
+
+    async def test_hydrate_no_admin_key(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        """hydrate_no_admin_key [scenario]: admin_key None → 'not configured' + skip audit."""
+        self._mute_tools(monkeypatch)
+        writes = _spy_writes(monkeypatch)
+        app = _resolved_app(_args_existing(session_id="s-bf-1"))  # admin_key defaults None
+        async with app.run_test() as pilot:
+            await pilot.pause()
+            await app._hydrate_bifrost_state()
+            await pilot.pause()
+        joined = " ".join(_text_of(w) for w in writes)
+        assert "admin key not configured" in joined
+        assert "bifrost_state_skipped" in joined
+
+    async def test_hydrate_success(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        """hydrate_success [scenario,tracer]: 200 → binding in BifrostState pane + audit."""
+        import ratatoskr.tui as tui_mod
+
+        self._mute_tools(monkeypatch)
+        writes = _spy_writes(monkeypatch)
+
+        async def fake_bifrost(client, session_id, *, admin_key):
+            return {
+                "endpoint_url": "https://b/mcp",
+                "consumer_id": "alice",
+                "connected": True,
+                "capabilities_granted": ["tools:call"],
+                "tools": [{"name": "bifrost.echo"}],
+            }
+
+        monkeypatch.setattr(tui_mod, "get_session_bifrost", fake_bifrost)
+        app = _resolved_app(_args_existing(session_id="s-bf-2", admin_key="ak"))
+        async with app.run_test() as pilot:
+            await pilot.pause()
+            await app._hydrate_bifrost_state()
+            await pilot.pause()
+        joined = " ".join(_text_of(w) for w in writes)
+        assert "bifrost binding" in joined
+        assert "bifrost.echo" in joined
+        assert "bifrost_state_hydrated" in joined
+
+    async def test_hydrate_404_not_bound(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        """hydrate_404_not_bound [error]: 404 → 'not bound to Bifrost' + audit; no crash."""
+        import ratatoskr.tui as tui_mod
+        from ratatoskr.sessions import SessionApiFailed
+
+        self._mute_tools(monkeypatch)
+        writes = _spy_writes(monkeypatch)
+
+        async def not_bound(client, session_id, *, admin_key):
+            raise SessionApiFailed(status=404, body=b"session_not_bifrost_bound")
+
+        monkeypatch.setattr(tui_mod, "get_session_bifrost", not_bound)
+        app = _resolved_app(_args_existing(session_id="s-bf-3", admin_key="ak"))
+        async with app.run_test() as pilot:
+            await pilot.pause()
+            await app._hydrate_bifrost_state()
+            await pilot.pause()
+        joined = " ".join(_text_of(w) for w in writes)
+        assert "not bound to Bifrost" in joined
+        assert "bifrost_state_unavailable" in joined
+
+
+class TestAdminEventsStream:
+    """stream_admin_events + the #11 AdminEvents pane (GET /admin/events, session-filtered)."""
+
+    @staticmethod
+    def _mute_hydrates(monkeypatch: pytest.MonkeyPatch) -> None:
+        """Neutralize the other on_mount workers (tools + bifrost) — no real calls."""
+        import ratatoskr.tui as tui_mod
+        from ratatoskr.sessions import SessionApiFailed
+
+        async def noop_tools(client, session_id):
+            return {"agent_id": "x", "builtin_tools": [], "bifrost_tools": []}
+
+        async def noop_bifrost(client, session_id, *, admin_key):
+            raise SessionApiFailed(status=404, body=b"nb")
+
+        monkeypatch.setattr(tui_mod, "get_session_tools", noop_tools)
+        monkeypatch.setattr(tui_mod, "get_session_bifrost", noop_bifrost)
+
+    def test_format_admin_event(self) -> None:
+        """format_admin_event [unit]: HH:MM:SS + type + fields; session_id dropped."""
+        from ratatoskr.sse_client import AdminEvent
+        from ratatoskr.tui import _format_admin_event
+
+        line = _format_admin_event(
+            AdminEvent(
+                42, "turn.completed", "2026-05-06T10:00:05.000Z",
+                {"session_id": "s1", "turn_id": 7, "duration_ms": 1200, "phase": "succeeded"},
+            )
+        )
+        assert "turn.completed" in line
+        assert "[10:00:05]" in line
+        assert "turn_id=7" in line
+        assert "session_id" not in line  # dropped — pane is already session-scoped
+
+    def test_admin_event_matches_filter(self) -> None:
+        """admin_event_matches [unit]: active-session + non-heartbeat system.* pass (§6)."""
+        from ratatoskr.sse_client import AdminEvent
+
+        E = AdminEvent
+        app = _resolved_app(_args_existing(session_id="s-match"))
+        assert app._admin_event_matches(E(1, "session.created", "t", {"session_id": "s-match"}))
+        assert not app._admin_event_matches(E(2, "turn.started", "t", {"session_id": "other"}))
+        assert not app._admin_event_matches(E(0, "system.heartbeat", "t", {}))
+        assert app._admin_event_matches(E(3, "system.events_dropped", "t", {"count": 5}))
+
+    async def test_stream_writes_filtered_events(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        """stream_filtered [scenario,tracer]: only active-session + non-heartbeat lines land."""
+        import ratatoskr.tui as tui_mod
+        from ratatoskr.sse_client import AdminEvent
+
+        self._mute_hydrates(monkeypatch)
+        writes = _spy_writes(monkeypatch)
+
+        async def fake_stream(client, *, admin_key, last_event_id=None):
+            yield AdminEvent(41, "session.created", "t", {"session_id": "s-ae-2"})
+            yield AdminEvent(0, "system.heartbeat", "t", {})  # filtered (noise)
+            yield AdminEvent(42, "turn.started", "t", {"session_id": "other"})  # diff session
+            yield AdminEvent(43, "session.deleted", "t", {"session_id": "s-ae-2"})
+
+        monkeypatch.setattr(tui_mod, "stream_admin_events", fake_stream)
+        app = _resolved_app(_args_existing(session_id="s-ae-2", admin_key="ak"))
+        async with app.run_test() as pilot:
+            await pilot.pause()
+            await app._stream_admin_events()
+            await pilot.pause()
+        joined = " ".join(_text_of(w) for w in writes)
+        assert "session.created" in joined
+        assert "session.deleted" in joined
+        assert "system.heartbeat" not in joined
+        assert "turn.started" not in joined  # different session → filtered
+
+    async def test_stream_no_admin_key(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        """stream_no_admin_key [scenario]: admin_key None → 'not configured' + skip audit."""
+        self._mute_hydrates(monkeypatch)
+        writes = _spy_writes(monkeypatch)
+        app = _resolved_app(_args_existing(session_id="s-ae-3"))  # admin_key None
+        async with app.run_test() as pilot:
+            await pilot.pause()
+            await app._stream_admin_events()
+            await pilot.pause()
+        joined = " ".join(_text_of(w) for w in writes)
+        assert "admin key not configured" in joined
+        assert "admin_events_skipped" in joined
+
+    async def test_stream_403_unavailable(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        """stream_403 [error]: 403 scope-denied → 'unavailable' + audit; no crash."""
+        import ratatoskr.tui as tui_mod
+        from ratatoskr.sse_client import SseConnectFailed
+
+        self._mute_hydrates(monkeypatch)
+        writes = _spy_writes(monkeypatch)
+
+        async def denied(client, *, admin_key, last_event_id=None):
+            raise SseConnectFailed(status=403, body=b"auth_scope_denied")
+            yield  # unreachable — makes this an async generator
+
+        monkeypatch.setattr(tui_mod, "stream_admin_events", denied)
+        app = _resolved_app(_args_existing(session_id="s-ae-4", admin_key="ak"))
+        async with app.run_test() as pilot:
+            await pilot.pause()
+            await app._stream_admin_events()
+            await pilot.pause()
+        joined = " ".join(_text_of(w) for w in writes)
+        assert "admin events unavailable: HTTP 403" in joined
+        assert "admin_events_unavailable" in joined

uv.lock

@@ -1052,7 +1052,7 @@ wheels = [
 
 [[package]]
 name = "ratatoskr"
-version = "0.18.7"
+version = "0.19.0"
 source = { editable = "." }
 dependencies = [
     { name = "httpx" },