Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/whitequeen306/code-cortex-loop/agents-mdgit clone --depth 1 https://github.com/whitequeen306/code-cortex-loopWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.01601 | $0.01601 |
| Opus 5 | $0.00800 | $0.00800 |
| Sonnet 5 | $0.00320 | $0.00320 |
| Haiku 4.5 | $0.00160 | $0.00160 |
Grade A, and why
code-cortex-loop AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CodeCortexLoop — Agent Rules
These rules apply when running any /cortexloop* command. Tool-specific installs copy this to the appropriate rules directory or merge into project AGENTS.md.
When CodeCortexLoop Runs
- Load
cortexloop.config.jsonfrom project root (optional) - Load
.cortexloopignore(optional) - Follow
cortexloop-workflowfor severity, scoring, CI, re-verify, and post-processing - Follow
refactor-safetyfor all code modifications - Follow
baseline-policywhen using/cortexloop-baselineorci.baseline - Follow
learning-loopwhen querying or recording playbook entries
Finding Quality Gate
Every scored finding must include:
- Evidence: trigger path, measurement, test gap, static proof, or audit output
- Confidence:
highormedium
Low-confidence speculation must not become a scored finding. Put it in Open Questions or drop it.
Security Baseline (always during security pass)
Every code change must satisfy:
- User input sanitized at boundaries
- SQL parameterized (no string concatenation)
- No secrets in code, logs, or git
- Error messages must not leak internals
- File uploads restricted (type, size, path)
- External URLs validated (SSRF prevention)
Refactor Safety (Direct mode)
- Preserve behavior exactly during simplify/perf passes
- Chesterton's Fence: understand before removing
- Ask before deleting dead code or dependencies
- Separate refactors from bug fixes
- Run tests after each logical change group; revert on failure
Suppression
- Project:
.cortexloopignore(gitignore syntax) - Inline:
// cortexloop-ignore CL-001or# cortexloop-ignore CL-001 - Never suppress Critical without explicit user approval
CI Gate
After CI report generation:
node scripts/ci-gate.mjs docs/cortexloop/report.json
# Baseline ratchet (new findings only):
node scripts/baseline.mjs diff docs/cortexloop/report.json
node scripts/ci-gate.mjs docs/cortexloop/report.json --baseline
Exit codes: 0 pass, 1 Critical, 2 High over threshold, 3 report error.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 153 lines · 1,601 tokens per session scan A 1c2b4c2bbc5d
code-cortex-loop AGENTS.md is an instructions file published in the GitHub repository whitequeen306/code-cortex-loop (15 stars, last pushed 1mo ago), licensed MIT. It adds 1,601 tokens to every session, about $0.0080 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
buildNext
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit AGENTS.md
Instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
langchain AGENTS.md
Instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.