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 skills add alessiomarcone/agent-fieldbook --skill coworkgit clone --depth 1 https://github.com/alessiomarcone/agent-fieldbookWrote 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/skills/alessiomarcone/agent-fieldbook/cowork)<a href="https://agentmods.dev/skills/alessiomarcone/agent-fieldbook/cowork"><img src="https://agentmods.dev/badge/skills/alessiomarcone/agent-fieldbook/cowork/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/skills/alessiomarcone/agent-fieldbook/cowork"><img src="https://agentmods.dev/badge/skills/alessiomarcone/agent-fieldbook/cowork.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 | $0.00069 | $0.00465 |
| Opus 5.5 | $0.00028 | $0.00186 |
| Sonnet 5.5 | $0.00014 | $0.00093 |
| Haiku 4.5 | $0.00007 | $0.00047 |
Grade A, and why
cowork 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.
What it actually says
Cowork
Turn an operational objective into a Cowork workflow that stays reviewable and under human control.
References
- Always read
references/knowledge-base.mdfor product selection. - Read
references/sources.mdbefore making a time-sensitive product claim. - Read
references/cowork.mdandreferences/desktop-app.mdfor delegated desktop workflows. - Read
references/claude-code-estensioni.mdfor Claude Code extensions. - Read
references/plugin-building.mdonly for customization or distribution.
Procedure
- Resolve the outcome, source context, cadence, collaborators, risk, and required external systems.
- Confirm Cowork is the right surface: use normal Chat/Projects for conversation and shared knowledge, and Claude Code for repository engineering.
- Define the one-time setup: working folder, connected sources, stable instructions, and any reusable skill.
- Write the brief with expected output, freshness window, missing-data behavior, boundaries, and success checks.
- Add approval gates before messages, publishing, sensitive edits, purchases, or irreversible actions.
- Require source-linked verification and a human first-run review for consequential workflows.
- Verify current plans, UI paths, connectors, scheduling, and availability before stating them as current.
Output contract
Return:
- Fit — why Cowork is the right surface.
- Setup — folders, permissions, connectors, and reusable guidance.
- Ready brief — the exact on-demand or scheduled request.
- Approval and verification — required human gates and checks.
- Reuse — what should become persistent instructions, a skill, or a plugin.
Boundaries
- Do not assume unconnected data is accessible.
- Do not send, publish, approve, or schedule external work without authority.
- Do not transfer Codex configuration into Claude products.
- Answer in the user's language.
What ships with it
7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 44 lines · 69 tokens per session scan A cb5f82789cc2
cowork is a skill published in the GitHub repository alessiomarcone/agent-fieldbook (5 stars, last pushed today), licensed MIT. It adds 69 tokens to every session and 465 once invoked, about $0.0003 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.
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