kilroy: Instructions file for Codex

AGENTS.md

kilroy AGENTS.md is an instructions file for Codex, OpenCode from danshapiro/kilroy. It costs 2,772 tokens per session, scanned B, original, MIT.

Repository instructions for Kilroy, a local Go command-line tool that turns written requirements into software-factory pipelines. A pipeline is a sequence of connected stages that can be validated and run with checkpoints and history.

In plain words
What is it for?
Use them when building Kilroy, creating and validating pipeline graphs, running pipelines, or investigating failures in a general way that should help projects using different languages and systems.
Why use it?
They tell an agent how Kilroy works and how to respond when it fails on a project. The guidance focuses on improving Kilroy for many projects instead of patching one project's files or pipeline.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads .claude/ paths; mentions subagents; mentions Codex.

This is danshapiro/kilroy's own configuration. It tells Codex and OpenCode how to work on kilroy 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 kilroy configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/user/code/kilroy-wt-state-isolation-watchdog.

Reuse

Borrowing it

Nothing to install: this file belongs to danshapiro/kilroy. 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/danshapiro/kilroy/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/danshapiro/kilroy

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.

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README.md
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Your own site
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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.

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Per session 2,772 This file is loaded in full into every session.
When invoked 2,772 The same file — it is already loaded in full.
Security scan B 1 finding. 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 $0.02772 $0.02772
Opus 5.5 $0.01109 $0.01109
Sonnet 5.5 $0.00554 $0.00554
Haiku 4.5 $0.00277 $0.00277

Measured 2mo ago against content hash 4dfb7239f066, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

kilroy AGENTS.md scanned grade B with 1 finding 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

gofmt -l . | grep -v '^\./\.claude/' | grep -v '^\.claude/'
AGENTS.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

What Kilroy Is

Kilroy is a local-first Go CLI for running software-factory pipelines in a Git repository. There is a skill to convert English requirements into DOT graphs. Then it validates graph semantics and executes stages with checkpoint commits and a run history backed by cxdb. Foundational specs that are in docs/strongdm/attractor.

Use Kilroy in this order: build the binary, generate or write a graph, validate it, then run it with a config file. Typical flow: go build -o ./kilroy ./cmd/kilroy, ./kilroy attractor ingest -o pipeline.dot "<requirements>", ./kilroy attractor validate --graph pipeline.dot, then ./kilroy attractor run --graph pipeline.dot --config run.yaml.

What you're doing here - the Prime Directive.

If you can see this message, then you are not here to use Kilroy - YOU ARE HERE TO IMPROVE KILROY. If Kilroy fails to build a project:

  • Don't fix the project
  • Don't fix the dotfile
  • Don't fix the system so it works for this project Use the knowledge you've gained from the failure to make the system more robust for every project. Your changes should work for every project, every language, every system. Of course, specific user instructions may override this, or any other section.

Think like a user

Think about a blank slate agent that is trying to properly create a dotfile using the dotfile skill and then run it with the attractor. What mistakes would it make? What ergonomics would steer it away? How can you make that robust for every possible project the attractor could work on, not just this one? How can you do that without asking it to know the impossible, like how hard a problem is or how long something might take?

Canonical Specs

These three specs are the true north for system design. If you are making a change that relates to one of their areas, you must consult the relevant spec first to see what the idiomatic solution is.

  • Unified LLM Spec (docs/strongdm/attractor/unified-llm-spec.md): Provider-agnostic LLM client — a single Client interface across LLM endpoints with unified types, retry/backoff, streaming, and tool calling. Key implementation: internal/llm/ (client, types, errors, retry, generate, streaming) and internal/llm/providers/ (per-provider adapters).

Read the full file on GitHub · 182 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 · 182 lines · 2,772 tokens per session scan B 4dfb7239f066

Subscribe to this mod's changes

kilroy AGENTS.md is an instructions file published in the GitHub repository danshapiro/kilroy (222 stars, last pushed 6mo ago), licensed MIT. It adds 2,772 tokens to every session, about $0.0111 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

kilroy AGENTS.md compared with instructions from other repositories

kilroy AGENTS.md next to 6 instructions from other repositories
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kilroy AGENTS.mddanshapiro/kilroyInstructions file2226mo agoMITB2,772Codex, OpenCode
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deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k2d agoMITA4,313Codex, OpenCode