4e20030229
Panel (Gróa + Hulda + Regin, source-verified by Heid): adapter/route-map/
ConnectFailed-at-call-sites sound against the declared invariants; 4 real
robustness findings, all in the CLI open-world presenter/probe paths — the
container-type layer BELOW the null/element holes the code-review already fixed.
Fixed (findings 1-3):
- `_format_whoami` (`cli.py`): a non-iterable `scopes`/`allowed_roles` scalar
(`{"scopes": 123}`) made `x or []` yield `123` → `for s in 123` TypeError. New
`_display_seq` helper degrades any non-list (scalar / bare string / null / absent)
to empty; applied to both `scopes` and `allowed_roles`.
- `_characters_probe` (`cli.py`): same class on the model catalog `items` (`{"items":
123}`) — now guards `models` is a Mapping and `items` is a list before iterating.
- `_characters_probe`: the top-level open-world reads `created` / `state` are now
`isinstance(_, Mapping)`-guarded before any `.get` — a non-mapping SDK passthrough
(`created=[...]`) aborts cleanly (exit 20) / renders `pad=None` instead of an
AttributeError.
Accepted (finding 4, documented in contract § slice-5 notes): the `--characters`
probe leaks its transient character on a mid-lifecycle failure. PRE-EXISTING (the
retired probe had the identical linear no-`finally` structure — cutover did not
worsen it), TTL-bounded, one-shot diagnostic; a `try/finally` would swallow a
happy-path delete-failure (delete is both teardown and a tested step). Gróa + Heid
concur accept is defensible.
Dismissed (finding 5): Hulda flagged `sessions.py` dropping `get_me`/etc. as a
caller-contract break — it is the intended DEC-3 no-backwards-compat migration (all
in-repo callers rewired same-diff); Heid labels it intended-surface-change.
Added CLI tests for the three hardened paths (scalar scopes/roles; scalar items +
non-mapping state; non-mapping create abort). Suite 488 green; ruff clean; live
smoke re-run clean (identical happy-path output). Patch bump 0.21.17 → 0.21.18.