Borrowing it
Nothing to install: this file belongs to potapenko/spec-first-bootstrap. 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/potapenko/spec-first-bootstrap/master/AGENTS.mdgit clone --depth 1 https://github.com/potapenko/spec-first-bootstrapWrote 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/potapenko/spec-first-bootstrap/agents-md)<a href="https://agentmods.dev/instructions/potapenko/spec-first-bootstrap/agents-md"><img src="https://agentmods.dev/badge/instructions/potapenko/spec-first-bootstrap/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/potapenko/spec-first-bootstrap/agents-md"><img src="https://agentmods.dev/badge/instructions/potapenko/spec-first-bootstrap/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 | $0.01660 | $0.01660 |
| Opus 5.5 | $0.00664 | $0.00664 |
| Sonnet 5.5 | $0.00332 | $0.00332 |
| Haiku 4.5 | $0.00166 | $0.00166 |
Grade A, and why
spec-first-bootstrap 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 1mo 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 — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file defines workflow rules for agents maintaining this repository.
It is not the source of truth for detailed product behavior. Product behavior
belongs in docs/specs/; portable installer doctrine belongs in
docs/agent-governance/.
Current branch only
Agents must work only in the Git branch that is checked out when the task begins.
Do not create, switch, rename, or publish another branch, and do not create a Git worktree, unless the user explicitly asks for it. General approval to begin work, commit, or push is not permission to create a branch.
Before editing, a required plan declares either a bounded task-owned write set or task-wide repository authority. Existing changes are blockers only where they overlap paths the task must modify. Leave all other changes untouched and exclude them from staging and commits.
Work is not complete or accepted while its changes exist only in another branch or worktree. Task changes must be integrated into the operator-selected current branch.
At the end of any task that changes files, create a checkpoint commit and push it from the currently checked-out branch. Before committing, verify that a safe, writable upstream exists and that the push will not publish unrelated local commits. If either condition cannot be established, do not create the checkpoint commit. Commit only the files you changed for the task, and leave unrelated working-tree changes untouched. Do not report the task as complete until both the checkpoint commit and push succeed.
Task framing and scope control
Before implementation, read the task-framing and scope rules through
docs/agent-governance/work-governance.md. Complete bounded investigation before presenting the first
implementation-bearing plan; wait for approval unless the user explicitly
requests immediate execution. A requested plan is produced directly.
Approval persists across follow-ups, skills, and compaction. Use bounded or
task-wide authority; neither opens protected adjacent behavior.
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.
- 1mo ago Changed · -1 lines · -17 tokens per session ae097164ccb1
- 1mo ago Changed · +2 lines · +29 tokens per session c2235bbb505c
- 2mo ago Changed · -144 lines · -1,521 tokens per session 46112d38ac37
- 2mo ago Changed · +33 lines · +358 tokens per session 5a45a767f4e4
- 2mo ago First seen · 284 lines · 2,811 tokens per session scan A ac8e069098dd
spec-first-bootstrap AGENTS.md is an instructions file published in the GitHub repository potapenko/spec-first-bootstrap (11 stars, last pushed 19d ago), licensed MIT. It adds 1,660 tokens to every session, about $0.0066 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 2026-08-30.
spec-first-bootstrap AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| spec-first-bootstrap AGENTS.mdpotapenko/spec-first-bootstrap | Instructions file | 11 | 19d ago | MIT | A | 1,660 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 275k | 3d ago | MIT | A | 4,313 | Codex, OpenCode |