Borrowing it
Nothing to install: this file belongs to buildoak/fieldwork-skills. 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/buildoak/fieldwork-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/buildoak/fieldwork-skillsWrote 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/buildoak/fieldwork-skills/agents-md)<a href="https://agentmods.dev/instructions/buildoak/fieldwork-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/buildoak/fieldwork-skills/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/buildoak/fieldwork-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/buildoak/fieldwork-skills/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 | $0.00712 | $0.00712 |
| Opus 5.5 | $0.00285 | $0.00285 |
| Sonnet 5.5 | $0.00142 | $0.00142 |
| Haiku 4.5 | $0.00071 | $0.00071 |
Grade A, and why
fieldwork-skills 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 — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
fieldwork-skills Agent Installation Guide
fieldwork-skills is a collection of AI agent skills by buildoak. Each skill lives in skills/<skillname>/ and includes a SKILL.md runbook plus update metadata.
Critical Runtime Rules
- Codex CLI reads instructions from the repository root
AGENTS.mdonly. - Codex CLI does not read
codex.mdand does not read.codex/skills/. - Claude Code reads skills from
.claude/skills/<skillname>/SKILL.md.
List Available Skills
Skills are the folders inside skills/.
ls -1 skills/
Current skills:
agent-muxbrowser-opschatgpt-searchgoogle-workspace-opsgsd-coordinatorimage-gensummarizetrueskill-rankvaultweb-search
Install One Skill
Replace <skillname> with a folder name from skills/.
Claude Code:
mkdir -p /path/to/your-project/.claude/skills
cp -R skills/<skillname> /path/to/your-project/.claude/skills/<skillname>
Codex CLI (append this skill's instructions to the target project's root AGENTS.md):
touch /path/to/your-project/AGENTS.md
{
echo
echo "<!-- fieldwork-skill:<skillname> -->"
cat skills/<skillname>/SKILL.md
} >> /path/to/your-project/AGENTS.md
Install All Skills
Claude Code:
mkdir -p /path/to/your-project/.claude/skills
for d in skills/*/; do
cp -R "$d" "/path/to/your-project/.claude/skills/$(basename "$d")"
done
Codex CLI (append all skill runbooks into the target project's root AGENTS.md):
touch /path/to/your-project/AGENTS.md
for f in skills/*/SKILL.md; do
skill="$(basename "$(dirname "$f")")"
{
echo
echo "<!-- fieldwork-skill:${skill} -->"
cat "$f"
} >> /path/to/your-project/AGENTS.md
done
Install Runtime Dependencies
After copying skill folders, read each skill's SKILL.md for runtime dependency setup. Skills may require brew packages, pip packages, npm packages, API keys, or other prerequisites. Each SKILL.md has a "Setup" section with the specific instructions. For a detailed walkthrough, see references/installation-guide.md inside each skill directory.
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 First seen · 102 lines · 712 tokens per session scan A 6aaad550d1d1
fieldwork-skills AGENTS.md is an instructions file published in the GitHub repository buildoak/fieldwork-skills (15 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 712 tokens to every session, about $0.0028 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.
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.