docguard: Skill for Claude Code

.agent/skills/docguard-sync/SKILL.md

docguard-sync is a skill for Claude Code from raccioly/docguard. It costs 45 tokens per session (1,616 once invoked), scanned A, original, MIT.

A guide for keeping selected documentation sections aligned with the code. It refreshes marked code-derived sections and identifies human-written sections that may need review.

In plain words
What is it for?
Use it after code changes to review endpoints, entities, screens, technology choices, environment variables, and related prose in the canonical documentation.
Why use it?
It reduces outdated documentation by comparing the docs with the current code and previewing changes before they are applied.

Skill for Claude Code

Written for Claude Code: $ARGUMENTS substitution.

This is raccioly/docguard's own configuration. It tells Claude Code how to work on docguard itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything docguard configures →

Reuse

Borrowing it

Nothing to install: this file belongs to raccioly/docguard. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/raccioly/docguard/main/.agent/skills/docguard-sync/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/raccioly/docguard

Made for: Claude Code.

Wrote 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.

agentmods badge for docguard-sync

README.md
[![agentmods](https://agentmods.dev/badge/skills/raccioly/docguard/docguard-sync/github.svg)](https://agentmods.dev/skills/raccioly/docguard/docguard-sync)
Your own site
<a href="https://agentmods.dev/skills/raccioly/docguard/docguard-sync"><img src="https://agentmods.dev/badge/skills/raccioly/docguard/docguard-sync/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.

agentmods 80×15 button for docguard-sync

Your own site · 80×15
<a href="https://agentmods.dev/skills/raccioly/docguard/docguard-sync"><img src="https://agentmods.dev/badge/skills/raccioly/docguard/docguard-sync.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,616 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 4 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium MCP Rug Pull · line 4
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 44
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 54
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
  • medium MCP Rug Pull · line 78
    npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
    Fix: Pin the version: npx @scope/[email protected]
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00045 $0.01616
Opus 5.5 $0.00018 $0.00646
Sonnet 5.5 $0.00009 $0.00323
Haiku 4.5 $0.00005 $0.00162

Measured 6d ago against content hash 03d3e0a89988, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

docguard-sync 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 6d 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.

.agent/skills/docguard-sync/SKILL.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DocGuard Sync Skill

Running DocGuard

Run docguard from PATH when it is installed. Otherwise run npx --yes [email protected], the release these instructions ship with, in its place. Every docguard … command below means one of the two.

User Input

$ARGUMENTS

You MUST consider the user input. If --since <ref> is provided, include the git diff context in your reasoning when reviewing prose sections.

Goal

When code changes, re-derive the code-truth surface (endpoints, entities, screens, tech stack, env vars), refresh the matching <!-- docguard:section source=code --> blocks in canonical docs in place, and review/refresh the human-written prose in the same docs so it still describes reality.

Operating Constraints

  • Mechanical refreshes do not need you. DocGuard does them itself. Your job is the prose sections flagged as "review" — where the human writing may no longer match the new code reality.
  • Never edit anything outside the marked source=human sections in generated docs. The markers protect human writing; respect them.
  • Use the dry run first to see what will change before applying.

Execution Flow

Step 1 — Preview what's stale

docguard sync 2>&1

Reads:

  • ↻ / • lines: code-truth sections that drifted (you don't need to write these).
  • 🤖 Prose to review lines: human-written sections whose surrounding code changed — these are yours.

Step 2 — Apply the mechanical refresh

docguard sync --write 2>&1

Re-derives every code-truth section from the current code and rewrites only those markers. Idempotent — running again is a no-op when up to date.

Step 3 — Review the flagged prose

For each 🤖 Prose to review entry:

  1. Open the doc (e.g. docs-canonical/API-REFERENCE.md).
  2. Locate the <!-- docguard:section id=<id> source=human --> block.
  3. Read the surrounding source=code section first — that's the new truth (e.g. the refreshed endpoint list, the refreshed screens table).
  4. Update the human prose so it still accurately describes that truth. Examples of what to update:
    • The API overview's endpoint count, or its description of the surface area.
    • The Architecture overview when new components/services appeared.
    • The Screens flows when new screens were added/removed/renamed.
  5. Stay inside the source=human markers — don't touch the code sections.

Read the full file on GitHub · 145 lines

Changes

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.

  1. 6d ago Changed 03d3e0a89988
  2. 9d ago Changed 47697e09128c
  3. 11d ago Changed aebbf9ee2030
  4. 12d ago Changed f29f73016d2d
  5. 21d ago Changed · +6 lines 651b263c6824
  6. 22d ago Changed · +8 lines 041548d2f673
  7. 1mo ago Changed · +15 lines d09ee7de1bb6
  8. 1mo ago Changed 59f358c018d3
  9. 1mo ago Changed fc28bea25f13
  10. 1mo ago First seen · 116 lines · 45 tokens per session scan A 46247726a57b

Subscribe to this mod's changes

docguard-sync is a skill published in the GitHub repository raccioly/docguard (32 stars, last pushed 3d ago), licensed MIT. It adds 45 tokens to every session and 1,616 once invoked, about $0.0002 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.