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[grade=A] add SKILL_EVOLUTION_SKILLS_DIR env var for per-Hermes-profile skills trees

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Forked from Carlo1911/skill-evolution main. Adds env-var override so a single
installed pipeline can target per-profile skills trees (default ~/.hermes/skills,
krystie ~/.hermes/profiles/krystie/skills, sami-story ~/.hermes/profiles/sami-story/skills)
without monkeypatching HOME or the SKILLS_DIR module constant.

- scripts/skill_index.py: add resolve_skills_dir() + SKILLS_DIR_ENV_VAR, wire into
  scan_skills() with explicit-arg > env-var > default resolution order. Read at
  call time (matches fetch_sessions.get_state_db_path() convention).
- tests/test_skill_index.py: 2 new tests covering nonblank env var and blank
  fallback (the latter monkeypatches SKILLS_DIR + invokes scan_skills() with no
  args so the test actually exercises the fallback expression, not just the
  explicit arg path).
- 49/49 conformance tests pass.
- Codex grade: A (verified 2026-08-05).

Co-Authored-By: Claude Opus 4 <noreply@anthropic.com>
This commit is contained in:
Krystie
2026-08-05 15:09:59 -07:00
parent 651553f4f5
commit 52b77bfcad
2 changed files with 59 additions and 3 deletions
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scripts/skill_index.py
+24 -3
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@@ -15,6 +15,20 @@ from typing import Optional
SKILLS_DIR = os.path.expanduser("~/.hermes/skills")
SKILLS_DIR_ENV_VAR = "SKILL_EVOLUTION_SKILLS_DIR"
def resolve_skills_dir() -> str:
"""Resolve the skills directory, honouring SKILL_EVOLUTION_SKILLS_DIR.
Mirrors fetch_sessions.get_state_db_path()'s read-at-call-time shape: the env var
is read every call (not frozen at import) so a single installed pipeline can target
different skill trees per run (e.g. per-Hermes-profile layouts like
~/.hermes/profiles/<name>/skills/) without monkeypatching HOME. Falls back to the
default ~/.hermes/skills when unset or blank, so existing callers see no behaviour
change.
"""
return os.environ.get(SKILLS_DIR_ENV_VAR, "").strip() or SKILLS_DIR
def parse_name_description_frontmatter(content: str) -> dict:
@@ -62,9 +76,16 @@ def build_skill_record(skill_md: Path, category: str) -> Optional[dict]:
}
def scan_skills(skills_dir: str = SKILLS_DIR) -> list:
"""Scan skills directory and return structured index."""
base = Path(skills_dir)
def scan_skills(skills_dir: Optional[str] = None) -> list:
"""Scan skills directory and return structured index.
Resolution order: explicit `skills_dir` arg > SKILL_EVOLUTION_SKILLS_DIR env var >
the default ~/.hermes/skills. The env var is read at call time (same as
fetch_sessions.get_state_db_path) so a single installed pipeline can target
different skill trees per run -- e.g. per-Hermes-profile layouts like
~/.hermes/profiles/<name>/skills/ -- without monkeypatching HOME.
"""
base = Path(skills_dir if skills_dir is not None else resolve_skills_dir())
if not base.exists():
return []