Borrowing it
Nothing to install: this file belongs to V-Songbird/slag. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/V-Songbird/slag/main/AGENTS.mdgit clone --depth 1 https://github.com/V-Songbird/slagWrote 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.
[](https://agentmods.dev/instructions/v-songbird/slag/agents-md)<a href="https://agentmods.dev/instructions/v-songbird/slag/agents-md"><img src="https://agentmods.dev/badge/instructions/v-songbird/slag/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.
<a href="https://agentmods.dev/instructions/v-songbird/slag/agents-md"><img src="https://agentmods.dev/badge/instructions/v-songbird/slag/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00949 | $0.00949 |
| Opus 5.5 | $0.00380 | $0.00380 |
| Sonnet 5.5 | $0.00190 | $0.00190 |
| Haiku 4.5 | $0.00095 | $0.00095 |
Grade A, and why
slag 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 19d 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 — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Slag
Slag contains the experimental anneal and collet plugins. Node 22 or later is required;
.nvmrc selects Node 22. There is no dependency installation or build step.
Root JavaScript uses CommonJS; collet/package.json selects ESM inside collet.
Start here
- For installation and plugin selection, read README.md.
- Before changing manifests, hooks or release metadata, read host contracts.
- Before changing collet's mount, scope or closure, read runtime contracts.
- Before editing a plugin README, read the README structure.
- For repository setup and checks, read repository scope.
- Before deciding which plugin a new behavior belongs in, read plugin roles.
Commands
Run from the repository root unless a row names another directory.
| Command | Purpose | Cost |
|---|---|---|
npm run check |
All plugin and repository tests | Local subprocesses and temporary fixtures; no paid services |
node --test scripts/plugin-integrity.test.js |
Manifest paths and cross-host metadata | Local |
node --test scripts/ignore-policy.test.js |
Documentation visibility contract | Local temporary Git fixtures |
node --test scripts/markdown-links.test.js |
Relative links and anchors in tracked public Markdown | Local temporary Git fixtures |
node --test from anneal/ or collet/ |
One plugin's suite, without the suite-failure reporter: a suite that fails outside its tests can still exit 0 | Local temporary fixtures |
node anneal/scripts/audit.js --root . |
Heuristic navigation audit | Read-only, local |
The live session evals have separate host, sandbox and service requirements; see the eval prerequisites for anneal and collet.
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.
- 19d ago Changed · +6 lines · +170 tokens per session 0cc4ae8b81c4
- 23d ago Changed · +2 lines · +55 tokens per session 1584229d90be
- 1mo ago Changed · +47 tokens per session 58618c86ccae
- 1mo ago Changed · -138 lines · -2,416 tokens per session c25e332441fe
- 1mo ago Changed · +182 lines · +2,963 tokens per session 01c5722255cd
- 1mo ago First seen · 12 lines · 130 tokens per session scan A 4107f1f89792
slag AGENTS.md is an instructions file published in the GitHub repository V-Songbird/slag (1 stars, last pushed 20d ago), licensed MIT. It adds 949 tokens to every session, about $0.0038 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.
Other instructions, from other repositories
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).
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.
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Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.