The original PR added EXCLUDE_SOURCES filtering to pipeline.available_sources()
and to the check-config.sh banner, but env.py::get_config() builds its config
dict from a hardcoded keys list that didn't include EXCLUDE_SOURCES. The
result: setting EXCLUDE_SOURCES in the environment silently no-op'd through
the Python pipeline. Only the bash hook (which reads shell env directly)
worked. The PR's unit tests didn't catch this because they construct config
dicts directly, bypassing get_config().
Changes:
- Add ('EXCLUDE_SOURCES', '') to env.py's keys list so the env var actually
propagates into config.
- Add an end-to-end regression test that goes through get_config() rather
than constructing config dicts directly.
- Document EXCLUDE_SOURCES in SKILL.md's source-list checklist so the model
invoking the skill knows to subtract excluded sources before displaying
the active-sources line. (Per AGENTS.md: engine flags without SKILL.md
prose are incomplete — the agent invoking the skill won't know the flag
exists.)
Trevin Chow
306d8c2d73