cirdan: Instructions file for Codex

AGENTS.md

cirdan AGENTS.md is an instructions file for Codex, OpenCode from adanb13/cirdan. It costs 1,466 tokens per session, scanned A, original, Apache-2.0.

A set of AGENTS.md instructions for developing Cirdan, a Python on-call repair system that links production alerts to services and repositories, tests fixes, and can open verified pull requests.

In plain words
What is it for?
Use it when changing Cirdan, including its command-line tool, daemon, MCP server, HTTP API, alert handling, isolated reproductions, and verification tests.
Why use it?
It gives a coding agent the project’s setup, architecture, testing commands, and repair workflow in one place.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is adanb13/cirdan's own configuration. It tells Codex and OpenCode how to work on cirdan itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything cirdan configures →

Reuse

Borrowing it

Nothing to install: this file belongs to adanb13/cirdan. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/adanb13/cirdan/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/adanb13/cirdan

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for cirdan AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/adanb13/cirdan/agents-md/github.svg)](https://agentmods.dev/instructions/adanb13/cirdan/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/adanb13/cirdan/agents-md"><img src="https://agentmods.dev/badge/instructions/adanb13/cirdan/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cirdan AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/adanb13/cirdan/agents-md"><img src="https://agentmods.dev/badge/instructions/adanb13/cirdan/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,466 This file is loaded in full into every session.
When invoked 1,466 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01466 $0.01466
Opus 5.5 $0.00586 $0.00586
Sonnet 5.5 $0.00293 $0.00293
Haiku 4.5 $0.00147 $0.00147

Measured 2mo ago against content hash 796340d2902c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cirdan 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 2mo ago.

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.

AGENTS.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Working on Cirdan

Cirdan is a Python package (cirdanops) providing the cirdan CLI and cirdand daemon. It is an on-call software repair agent: a production alert (Grafana / Alertmanager / Slack) resolves to a registered service and repo via the explicit services: registry in cirdan.yaml, the failure is reproduced in an isolated runner (Docker Compose / K8s), a coding agent fixes the code (an in-process API provider, or a workspace-spawned local agent CLI in the cli posture), the fix is re-verified against the pinned repro probe and the repo test suite, and a verified PR opens (@cirdan review loop; CI checks watched). When policy allows, delivery merges, deploys, and verifies production recovery, stopping at manual_required on failure.

Setup

python3 -m venv --without-pip .venv          # ensurepip may be unavailable on Debian/Ubuntu
python3 -m pip --python .venv/bin/python install -e ".[all,dev]"
.venv/bin/python -m pytest tests/ -q

Architecture in one paragraph

cirdan.engine.CirdanEngine is the single wiring point used by the CLI (cirdan/cli/main.py), MCP server (cirdan/mcp/server.py), HTTP API (cirdan/api/http.py), and daemon (cirdan/daemon/server.py). It owns config (cirdan/config.py — the services: registry of ServiceEntry/DeployTargetConfig, routing policy, safety gates), the access context (a probed mirror of what the session can do — cirdan/access/), the SQLite store (cirdan/graph/store.py — one file holding incidents, alerts, events, agent runs, and kv state; a storage substrate, not topology), and the audit log. cirdan/registry.py is the source of truth for what is repairable: alert→service matching (match_alert), service→repo resolution (repairable_repo), and the typed runtime target (LiveTarget) consumed by probe exec, MCP get_logs/get_state, and the docker/kubernetes adapters. Alerts arrive through cirdan/ingest/, route through the first-match-wins policy in cirdan/incidents/routing.py (a registered service at qualifying severity defaults to reproduce_and_pr_only; everything else fails safe to triage_only), and become lifecycle-managed incidents in cirdan/incidents/. The responder (cirdan/incidents/responder.py) drives the repair: repair/workspace.py clones an isolated workspace (remote URL + auth from integrations/github.clone_context, whose push_url is always the canonical configured repo — pushes structurally cannot land anywhere else), the compose/k8s runners (repair/{compose_runner,k8s_runner}.py) reproduce the failure, agents/api_agent.py (in-process API providers) or agents/cli_agent.py (workspace-spawned host CLIs) edits the code, and verification (repair/{probe,testsuite,verify}.py) gates the PR (integrations/github.py). repair/delivery.py advances merge → deploy → prod-verify to resolved or manual_required; repair/{pr_checks,pr_comments,review_loop}.py watch CI and drive the @cirdan review loop; cirdan/readiness.py computes the checklist behind the setup UI banner and cirdan status --checks; the remaining adapters (docker, kubernetes, loki, prometheus, tempo) collect logs, state, and telemetry evidence only.

Read the full file on GitHub · 63 lines

Changes

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.

  1. 2mo ago First seen · 63 lines · 1,466 tokens per session scan A 796340d2902c

Subscribe to this mod's changes

cirdan AGENTS.md is an instructions file published in the GitHub repository adanb13/cirdan (0 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 1,466 tokens to every session, about $0.0059 per session on Opus 5.5. 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 2026-08-31.

Related

Other instructions, from other repositories

data-scientist copilot-instructions.md

Repository instructions for a data-science workflow in GitHub Copilot, covering datasets, statistics, and analysis files.

realnghon/data-scientist · 373 tokens

vscode buildNext.instructions.md

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).

microsoft/vscode · 9,715 tokens

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,461 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).

microsoft/vscode · 5,262 tokens

langchain AGENTS.md

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.

langchain-ai/langchain · 4,680 tokens

vscode copilot-instructions.md

Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).

microsoft/vscode · 2,750 tokens