Borrowing it
Nothing to install: this file belongs to FastEndpoints/Documentation. 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/FastEndpoints/Documentation/main/AGENTS.mdgit clone --depth 1 https://github.com/FastEndpoints/DocumentationWrote 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/fastendpoints/documentation/agents-md)<a href="https://agentmods.dev/instructions/fastendpoints/documentation/agents-md"><img src="https://agentmods.dev/badge/instructions/fastendpoints/documentation/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/fastendpoints/documentation/agents-md"><img src="https://agentmods.dev/badge/instructions/fastendpoints/documentation/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 | $0.00650 | $0.00650 |
| Opus 5.5 | $0.00260 | $0.00260 |
| Sonnet 5.5 | $0.00130 | $0.00130 |
| Haiku 4.5 | $0.00065 | $0.00065 |
Grade A, and why
Documentation 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.
How it starts
The opening of the file, as written. The whole thing — 46 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Instructions
OKF knowledge set
This repository uses .okf/ as compact operational memory for AI agents.
OKF v0.1: non-reserved .md files need YAML frontmatter with non-empty type, title, and description; index.md is a directory listing; only bundle-root index.md may have frontmatter (okf_version).
Normative OKF use/update gates live in this file. .okf/index.md and .okf/maintenance.md are reminders and conformance detail; the okf-setup skill is setup/maintain procedure.
Before work
Match OKF depth to blast radius:
- Local/small change:
.okf/index.md+ conventions/gotchas (and the matching task file if the surface is already documented). - Cross-cutting, public API, persistence, auth, contracts, or new surface: read the core set first (overview, architecture, code-map, conventions), then task-specific files (testing/workflows/dependencies/operations/gotchas and any expanded files present).
OKF guides, but it does not replace checking source, tests, or manifests for exact behavior.
During work
Preserve conventions, boundaries, and workflows from OKF. On conflict with source/tests/generated artifacts/manifests: prefer verified current behavior, update OKF, mention the correction.
Before finishing
Sync .okf/ when the change hits the update triggers in .okf/maintenance.md. Default trigger inventory: architecture/boundaries; public APIs/routes/schemas/events/contracts; persistence/migrations; deps/runtime; build/run/test/lint/format/generate/deploy; testing strategy; security/auth; config/env/ports/ops; conventions/layout; gotchas.
If no update needed, state why (pure comment/typo/formatting: OKF unaffected (non-behavioral edit)). Task is incomplete until OKF is synced or explicitly unaffected.
General
Subject to project conventions in OKF/conventions.md (and architecture when present) and this file:
- Focused, minimal changes; prefer existing patterns.
- Do not use em or en dashes as prose punctuation. Use commas, parentheses, or separate sentences instead. Hyphens remain valid in compound words, bullets, code, commands, CLI flags, identifiers, paths, versions, ranges, quotations, and exact terms.
- Do not hand-edit generated artifacts listed in code-map/gotchas; regenerate via project commands instead. If a path is not listed but is clearly generated output, leave it alone and regenerate.
- If behavior changes, run the smallest relevant command from workflows/testing. If not run, state the blocker.
- Content lives in
src/content/;docs/is static build output only. - Develop and open PRs on
devonly; never open PRs againstmain.
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.
- 2mo ago First seen · 46 lines · 650 tokens per session scan A c3b689df19d7
Documentation AGENTS.md is an instructions file published in the GitHub repository FastEndpoints/Documentation (20 stars, last pushed 4d ago), licensed MIT. It adds 650 tokens to every session, about $0.0026 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 2026-09-04.
Documentation AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| Documentation AGENTS.mdFastEndpoints/Documentation | Instructions file | 20 | 4d ago | MIT | A | 650 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |