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Cognition vs AGENTS.md and CLAUDE.md rules files
AGENTS.md and CLAUDE.md are markdown files in your repository or home directory that load persistent instructions into a session. Cognition adds a hosted memory layer where skills are drafted from work, approved by a person, and retrieved when context matches.
Last reviewed 2026-11-03. Competitor details cite public docs below.
Cognition is for
Teams that outgrow static instruction files: you want skills to update after real incidents, carry provenance and freshness, and work the same way in Cursor, Claude Code, Codex, and Gemini through MCP.
AGENTS.md and CLAUDE.md instruction files is for
Maintainers who want version-controlled, repo-local guidance (build commands, style, architecture) that loads automatically without a separate service.
Side-by-side
Honest comparison on what each product publishes today. This is not a scorecard.
| Aspect | Cognition | AGENTS.md and CLAUDE.md instruction files |
|---|---|---|
| Authorship | Drafted from sessions, then explicitly approved before reuse | You (or /init) write and commit markdown instructions |
| Scope | Personal and org-scoped skills; shared only after approval | Project, user, org, or managed policy paths depending on the agent |
| Update cadence | Hosted pedagogy can refresh; local bootstrap calls get_pedagogy_instructions | Edit the file and merge like any other doc |
| Cross-agent | One MCP surface for multiple coding agents | AGENTS.md is supported by many agents; CLAUDE.md is Claude Code-specific |
| Outcome tracking | Agents can report whether a skill helped; retention uses reuse signals | No built-in outcome loop; effectiveness is informal |
| Format | SKILL.md bodies with triggers and checks in Cognition | Plain markdown sections you choose |
When to pick the other tool
- Your instructions are stable, small, and tightly bound to one repository.
- You do not need approval gates or reuse metrics across teammates.
- You prefer zero hosted dependency for baseline agent behavior.
How they work together
- Keep AGENTS.md or CLAUDE.md for repo facts that should live in git: build commands, layout, and security boundaries.
- Install Cognition's thin bootstrap block in the same file so agents load hosted pedagogy and call cognition_assist.
- Promote repeated corrections from chat into approved Cognition skills while leaving the static repo map in AGENTS.md.
Sources
We only state competitor facts we can point to in public documentation.
Try Cognition
Teach an agent once. Reuse the judgment in Codex, Claude Code, Cursor, and Gemini.
2 weeks free, then $9.99/mo. Cancel anytime.