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 GitbookIO/gitbook-skills --skill cr-reviewgit clone --depth 1 https://github.com/GitbookIO/gitbook-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/skills/gitbookio/gitbook-skills/cr-review)<a href="https://agentmods.dev/skills/gitbookio/gitbook-skills/cr-review"><img src="https://agentmods.dev/badge/skills/gitbookio/gitbook-skills/cr-review.svg" alt="Measured on agentmods" 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 | $0.00210 | $0.04667 |
| Opus 5 | $0.00105 | $0.02334 |
| Sonnet 5 | $0.00042 | $0.00933 |
| Haiku 4.5 | $0.00021 | $0.00467 |
Grade A, and why
cr-review scanned grade A with 1 finding 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 7d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
description: Review GitBook change requests from Claude Code by calling the GitBook REST API directly with curl (no CLI) — the reviewer-side companion to cr-create (the authoring side over the same API). Discover the cha How it starts
The opening of the file, as written. The whole thing — 256 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GitBook CR Review (direct API)
Review documentation change requests against a GitBook space or org entirely through the
GitBook REST API (https://api.gitbook.com/v1, hit with curl), so a reviewer never has
to leave Claude Code to find what needs review, understand what changed, and respond. This is
the reviewer-side companion to cr-create (the authoring side over the same API). The
reviewer flow is: discover → understand → comment → decide.
Because every step is a real HTTP call, never fake an output: if a call returns nothing, says nothing changed, or errors, report exactly that.
Auth and the gbapi helper
Every call is a Bearer-authenticated request to https://api.gitbook.com/v1. The token lives
in GITBOOK_TOKEN in the repo-root .env (create one at
https://app.gitbook.com/account/developer). Never print the token; never write it to a
tracked file. Define this helper once per session and use it for every call below — it fails
loudly on any non-2xx and prints the API's error body (curl --fail-with-body, curl ≥ 7.76 /
stock on current macOS):
set -a; [ -f .env ] && . ./.env; set +a # load GITBOOK_TOKEN
gbapi() { # gbapi METHOD /path [extra curl args…]
local method="$1" apipath="$2"; shift 2 # NB: not `path` — in zsh that is tied to $PATH
curl -sS --fail-with-body -X "$method" \
"https://api.gitbook.com/v1${apipath}" \
-H "Authorization: Bearer ${GITBOOK_TOKEN}" \
-H "Content-Type: application/json" "$@"
}
Every response is JSON — pipe it through jq and read whole objects. Never hand-parse by
grepping/line-pairing fields — bind the wrong title↔id and every downstream call runs against
the wrong space/CR (a confident "0 comments" from a space that isn't the one you meant). If
gbapi exits non-zero, surface the printed error — do not report success.
Endpoint map (verified against api.gitbook.com/openapi.json)
<org>, <space>, <cr>, <pageId> are the relevant IDs. Base URL is
https://api.gitbook.com/v1; paths are relative to it.
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.
- 7d ago First seen · 256 lines · 210 tokens per session scan A 67f1653f3ed7
cr-review is a skill published in the GitHub repository GitbookIO/gitbook-skills (12 stars, last pushed 6d ago), licensed MIT. It adds 210 tokens to every session and 4,667 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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