firstmate-coding-guidelines
Agent-only reference for changing firstmate's shared, tracked material per AGENTS.md section 1. Use before editing any of that material, whether working as firstmate directly or as a crewmate briefed on a firstmate-repo task. Covers the knowledge-placement decision tree, the one-owner rule for contracts, the inline-stub pattern for content moved into a skill, AGENTS.md size discipline, trigger hygiene for new skills, and repo style rules (one sentence per line, plain dash, no agent co-author, shellcheck-clean bin scripts, colocated tests, and maintainer-verification evidence).
SKILL.md
The description above is the indexed summary. With JavaScript enabled, this page also loads the SKILL.md text from GitHub.