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/jerrylalala/compound-engineering/agents-mdgit clone --depth 1 https://github.com/Jerrylalala/compound-engineeringWhat 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 | $0.03661 | $0.03661 |
| Opus 5 | $0.01831 | $0.01831 |
| Sonnet 5 | $0.00732 | $0.00732 |
| Haiku 4.5 | $0.00366 | $0.00366 |
Grade A, and why
compound-engineering 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 244 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Instructions
This repository primarily houses the compound-engineering coding-agent plugin and the Claude Code marketplace/catalog metadata used to distribute it.
It also contains:
- the Bun/TypeScript CLI that converts Claude Code plugins into other agent platform formats
- additional plugins under
plugins/, such ascoding-tutor - shared release and metadata infrastructure for the CLI, marketplace, and plugins
AGENTS.md is the canonical repo instruction file. Root CLAUDE.md exists only as a compatibility shim for tools and conversions that still look for it.
Quick Start
bun install
bun test # full test suite
bun run release:validate # check plugin/marketplace consistency
Working Agreement
- Branching: Create a feature branch for any non-trivial change. If already on the correct branch for the task, keep using it; do not create additional branches or worktrees unless explicitly requested.
- Safety: Do not delete or overwrite user data. Avoid destructive commands.
- Testing: Run
bun testafter changes that affect parsing, conversion, or output. - Release versioning: Releases are prepared by release automation, not normal feature PRs. The repo now has multiple release components (
cli,compound-engineering,coding-tutor,marketplace). GitHub release PRs and GitHub Releases are the canonical release-notes surface for new releases; rootCHANGELOG.mdis only a pointer to that history. Use conventional titles such asfeat:andfix:so release automation can classify change intent, but do not hand-bump release-owned versions or hand-author release notes in routine PRs. - Linked versions (cli + compound-engineering): The
linked-versionsrelease-please plugin keepscliandcompound-engineeringat the same version. This is intentional -- it simplifies version tracking across the CLI and the plugin it ships. A consequence is that a release with only plugin changes will still bump the CLI version (and vice versa). The CLI changelog may also include commits thatexclude-pathswould normally filter, becauselinked-versionsoverrides exclusion logic when forcing a synced bump. This is a known upstream release-please limitation, not a misconfiguration. Do not flag linked-version bumps as unnecessary. - Output Paths: Keep OpenCode output at
opencode.jsonand.opencode/{agents,skills,plugins}. For OpenCode, command go to~/.config/opencode/commands/<name>.md;opencode.jsonis deep-merged (never overwritten wholesale). - Scratch Space: When authoring or editing skills and agents that need repo-local scratch space, instruct them to use
.context/for ephemeral collaboration artifacts. Namespace compound-engineering workflow state under.context/compound-engineering/<workflow-or-skill-name>/, add a per-run subdirectory when concurrent runs are plausible, and clean scratch artifacts up after successful completion unless the user asked to inspect them or another agent still needs them. Durable outputs like plans, specs, learnings, and docs do not belong in.context/. - Character encoding:
- Identifiers (file names, agent names, command names): ASCII only -- converters and regex patterns depend on it.
- Markdown tables: Use pipe-delimited (
| col | col |), never box-drawing characters. - Prose and skill content: Unicode is fine (emoji, punctuation, etc.). Prefer ASCII arrows (
->,<-) over Unicode arrows in code blocks and terminal examples.
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.
- 3d ago First seen · 244 lines · 3,661 tokens per session scan A c004ac4c061a
compound-engineering AGENTS.md is an instructions file published in the GitHub repository Jerrylalala/compound-engineering (5 stars, last pushed 3mo ago), licensed MIT. It adds 3,661 tokens to every session, about $0.0183 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 2026-08-31.
Other instructions, from other repositories
vscode buildNext.instructions.md
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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.
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langchain AGENTS.md
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vscode oss-third-party-notices.instructions.md
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next.js AGENTS.md
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