[Righteous-AI]

Problem and result: Codex CLI, talking to Strata over the Responses API, stops the turn when Qwen writes a namespace tool under a spelling Strata does not accept. The block comes back as assistant text, so Codex never runs it. Stock main already accepts namespace__member (PR #3556). This also accepts namespace=member, namespace_member, and the bare member when exactly one declared tool has that member.

Observed on Strata v0.2.2 (011c9e60), Codex 0.163, model Qwen3.8-Flash-Next-FP4. The model wrote <function=mcp__filesystem=write_file>, <function=mcp__filesystem_edit_file>, and later a bare <function=write_file> and <function=list_allowed_directories>. The declared tool was mcp__filesystem.write_file (and the same namespace for the others). After this change those calls come back as function_call items with namespace mcp__filesystem and the member name.

Related discussion: none found for these spellings. #3075 stays as it is: a name that matches nothing is still text, and two namespaces that share a member are not guessed. A Codex turn does end when that text path happens. This PR does not change that rule.

Approach: the alias table in OutputParser already rewrites namespace__member to the declared namespace.member name, which request_tools maps back to a namespace and a member. The same table now includes the equals form (the <function= tag's equals sign), the one-underscore form, and the bare member. An alias is kept only when one declared tool produces it, and a name that is itself declared wins.

Validation:
Passed: python3 -m unittest serve.test_tool_name_alias serve.test_tool_call_envelope -v on 6f5d5ab (parent 7dd5cf18, Strata main). Python 3.14, jinja2 3.x, no GPU. 20 tests, OK. The new file covers the equals write, the underscore edit with a string argument, bare write_file (path /tmp/patch-tencut.py), bare list_allowed_directories, the existing double-underscore form, an equals call inside thinking, an unknown name staying text, two namespaces sharing write_file staying text, and a flat tool named write_file winning over the namespace member.
Failed: none in those tests.
Not run: CUDA, HIP, and SYCL builds. This diff is the Python parser and its doc line. serve.test_responses.ToolRoundTrip.test_namespace_call_written_with_double_underscore was not run: Service imports strata_tokenizer, which this checkout does not put on the path, and no engine was started. A live Codex session against this branch was not run. The fixtures are the call text saved from the session above.

Limits: an unknown name, and a bare member shared by two namespaces, still come back as text (#3075). Codex ends the turn in that case. Say if that should be a follow-up where the block is a function_call with no namespace, so the client can reject it and continue.

[Righteous-AI]

Extra validation for 6f5d5ab:

• Before/after: serve.test_tool_name_alias fails 5 of 9 on main (7dd5cf18). mcp__filesystem=write_file, mcp__filesystem_edit_file, and bare write_file / list_allowed_directories come back as assistant text. It passes 9 of 9 on this branch. The guard cases (unknown name stays text, shared member not guessed, exact name wins) pass on both.
• Rest of the suite: serve.test_responses.ToolRoundTrip.test_namespace_call_written_with_double_underscore passes (CPU, strata_tokenizer is pure Python under tools/). The full serve suite gives 1043 tests with 1 failure here and 1034 with 2 failures on main. Both failures are the existing test_lifeline portable-watcher test and an intermittent NoLeakedSampler thread count, and neither is related to this change.
• Live: six fresh headless Codex 0.164.0 turns against this build on an RTX 5090 (Qwen3.8-Flash-Next-FP4, Responses API) all completed. Every filesystem call came back as a function_call in namespace mcp__filesystem, and none was returned as text. The model wrote the declared dotted names in these runs, so this shows no regression on the live path. The drifted spellings are sampling-dependent and are covered by the before/after tests above.

[Niko1221]

Thank you. Fixed in 0.2.7: Accept Codex spellings of a namespace tool. Your name is on the commit.

Release: https://github.com/Niko1221/Strata/releases/tag/v0.2.7