Compound

Compound: durable project knowledge

compound writes exactly two surfaces:

• docs/solutions/<category>/<slug>.md: one learning per solved problem.
• CONCEPTS.md at the repo root: one definition per project-specific term.

It does not write memory files. User/preference facts are handed to memory-update.

Auto-invoke

Fire automatically after a verified non-trivial outcome:

• "that worked"
• "it's fixed"
• "ship it"
• "merged"
• "resolved"
• "verified"
• "done"

Auto-fire is permission to evaluate, not permission to fabricate. The reject-by-default gate below still decides whether a doc is warranted.

Reject-by-default gate

A doc is earned, not assumed. All three filters must clear:

1. Would I forget this? Skip baseline knowledge anyone in this codebase already carries.
2. Already covered? Update an existing doc rather than duplicate it.
3. Scope-qualified? A repo-specific quirk qualifies; a general programming truth does not.

If nothing clears the gate, say so in one line and exit. Never fabricate a doc.

Mode routing

Strip mode: tokens from $ARGUMENTS.

Mode	Trigger	What it does
Solution (default)	none	Document one solved problem → docs/solutions/
Vocabulary	when a durable, reusable project term surfaces	Reconcile CONCEPTS.md: read references/concepts.md
Headless	mode:headless	Non-interactive overlay on whichever mode is active

Writing a solution doc

1. Read references/schema.yaml and assets/solution-template.md.
2. Classify the problem: bug or knowledge track.
3. Check docs/solutions/ for duplicates by grepping frontmatter (title:, tags:, module:, component:).
4. Write one file: docs/solutions/<category>/<slug>.md.
5. Run python3 scripts/validate-frontmatter.py <path> until it exits 0.
6. Read the file back to confirm.

Writing a concept entry

1. Read references/concepts.md.
2. Check CONCEPTS.md for an existing definition of the term.
3. If absent and the term clears the gate, add one entry: a one-sentence local definition and a second paragraph only for non-obvious behavioral rules.
4. One definition per concept. Refresh on drift, never duplicate.

Commits

One learning per commit. Body carries an ODIN Op: trailer:

Stage only the surfaces compound wrote or edited.