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multica/server/pkg
Bohan Jiang c9ceaee4d9 fix(agent): stop stripping user-facing CLAUDE_CODE_* config from child env (#3690)
* fix(agent): stop stripping user-facing CLAUDE_CODE_* config from child env

isFilteredChildEnvKey blanket-removed every CLAUDE_CODE_* var from the
spawned Claude Code child's environment. The intent was only to keep the
daemon's internal session markers from leaking, but CLAUDE_CODE_* is also
Anthropic's user-facing config namespace. On Windows this stripped the
user-set CLAUDE_CODE_GIT_BASH_PATH, so Claude Code could not locate
bash.exe, exited immediately, and every task failed with
"write claude input: write |1: The pipe has been ended."

Switch from prefixing the whole CLAUDE_CODE_ namespace to an exact-name
denylist of the internal runtime/session markers (CLAUDECODE,
CLAUDE_CODE_ENTRYPOINT, CLAUDE_CODE_EXECPATH, CLAUDE_CODE_SESSION_ID,
CLAUDE_CODE_TMPDIR, CLAUDE_CODE_SSE_PORT), still blanket-stripping the
wholly-internal CLAUDECODE_* namespace. Every other CLAUDE_CODE_* var
(GIT_BASH_PATH, USE_BEDROCK, USE_VERTEX, MAX_OUTPUT_TOKENS, ...) now
reaches the child. The internal-marker set was confirmed against the live
runtime, not guessed.

Fixes the whole class, not just git-bash: Bedrock/Vertex/etc. were
silently dropped the same way.

MUL-2940

Co-authored-by: multica-agent <github@multica.ai>

* fix(agent): keep CLAUDE_CODE_TMPDIR in child env

CLAUDE_CODE_TMPDIR is a documented, user-configurable temp-dir override
(public env-vars reference), not an internal per-session marker. Claude
Code creates its own per-session subdir under it, so inheriting it is
harmless — and stripping it would silently break a user's temp-dir
override the same way the broad prefix filter broke CLAUDE_CODE_GIT_BASH_PATH.

Drop it from the internal denylist (which now holds only the undocumented
per-process runtime markers: CLAUDECODE, CLAUDE_CODE_ENTRYPOINT,
CLAUDE_CODE_EXECPATH, CLAUDE_CODE_SESSION_ID, CLAUDE_CODE_SSE_PORT) and
assert it reaches the child.

MUL-2940

Co-authored-by: multica-agent <github@multica.ai>

---------

Co-authored-by: J <j@multica.ai>
Co-authored-by: multica-agent <github@multica.ai>
2026-06-05 12:29:55 +08:00
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