SkillValidated

Context-primer — keep the file every agent reads first current

A skill that audits your project-instructions file (CLAUDE.md / AGENTS.md / rules) against the repo as it exists today: stale commands, missing conventions, gotchas discovered since — and drafts the minimal update.

$cosq add context-primer

Free, works signed out. No CLI? Copy the file below into your repo — same result.

Why this one

Context and documentation quality is the strongest predictor of AI effectiveness (DORA 2025) — and stale context quietly degrades every session.

How to use it

  1. 1Run it after any change to build/test commands or conventions
  2. 2Keep the file short — an audit that doubles its length failed

What gets installed

Pick your tool to preview the exact file cosq add writes — byte-for-byte. Prefer copy-paste? Use the copy button on the file.

.claude/skills/context-primer/SKILL.md(created)
---
name: context-primer
description: Use to audit and refresh the project-instructions file: find stale commands, missing conventions, and undocumented gotchas, then draft the minimal update.
---

Audit the project's agent-instructions file against the repo as it is now:

1. Verify every stated command (build, test, lint, run) still exists in the
   project's manifests — flag the stale ones with their current replacement.
2. Compare stated conventions against the three most recently changed source
   files — note conventions the code follows that the file omits.
3. Check the gotchas section against recent debugging pain: anything a
   newcomer would still trip on that is not written down?
4. Draft the MINIMAL edit: corrections and the top missing items only. The
   file's value is density — do not pad it.

Present the draft as a diff for approval; do not rewrite the file wholesale.