verify-docs

verify-docs is a skill for Claude Code from martineserios/thebrana. It costs 28 tokens per session (1,109 once invoked), scanned A, original, MIT.

A periodic documentation check that tests whether documented assumptions are structurally fresh and presents sample rows for manual review. It can scan documentation and CLAUDE.md files, which are project instruction files.

In plain words
What is it for?
Use it quarterly, before architecture changes, after documentation updates, or when you suspect the docs describe behavior the code no longer has.
Why use it?
It surfaces places where documentation may no longer match the code or where instruction files contain outdated or volatile claims.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; mentions CLAUDE.md; names the AskUserQuestion tool.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is Bash: bash system/scripts/verify-docs.sh --sample 5.

Part of the brana plugin — 56 skills, 4 commands, 14 agents, 13 hooks shipped together

Good fit Use it quarterly, before architecture changes, after documentation updates, or when you…

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/martineserios/thebrana
agentmods
npx agentmods add skills/martineserios/thebrana/verify-docs

Made for: Claude Code.

Or install brana, the plugin that ships this one along with the rest of its 56 skills, 4 commands, 14 agents, 13 hooks.

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 verify-docs

README.md
[![agentmods](https://agentmods.dev/badge/skills/martineserios/thebrana/verify-docs.svg)](https://agentmods.dev/skills/martineserios/thebrana/verify-docs)
Your own site
<a href="https://agentmods.dev/skills/martineserios/thebrana/verify-docs"><img src="https://agentmods.dev/badge/skills/martineserios/thebrana/verify-docs.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,109 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.
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 $0.00028 $0.01109
Opus 5 $0.00014 $0.00554
Sonnet 5 $0.00006 $0.00222
Haiku 4.5 $0.00003 $0.00111

Measured 3d ago against content hash 58d296aaf83d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

verify-docs 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 3d 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.

system/skills/verify-docs/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verify-Docs — Periodic Doc Verification

Run a structural assumption-freshness check + surface a random sample of assumption rows for manual semantic review. No LLM. This is the trigger-evidence collector for t-441 (LLM-assisted drift detection).

When to use

  • Quarterly — primary cadence. Run both --scope docs and --scope claudemd.
  • Before a major architecture change — sanity-check assumption claims in the docs you're about to revise.
  • After a tier backfill — confirm structural staleness clears with the new tiers.
  • After a CLAUDE.md edit — run --scope claudemd to confirm no volatile content was introduced.
  • On demand — when you suspect a doc says X but code does Y.

Process

1a. Run the structural + sampling check (scope: docs)

Bash: bash system/scripts/verify-docs.sh --sample 5

If you want reproducibility, pass --seed N. For automation/scripting:

Bash: bash system/scripts/verify-docs.sh --json --sample 5 > /tmp/verify-docs-$(date -I).json

1b. Run the CLAUDE.md portfolio scan (scope: claudemd)

Bash: bash system/scripts/verify-docs.sh --scope claudemd

Detects three violation types across all portfolio CLAUDE.md files (excluding worktrees):

  • DATED_STATUS — status lines with embedded 202X-MM-DD dates
  • PRICING — service cost lines (ARS N/mes, $N/mes)
  • TRACKER_TABLE — work-tracker tables (Status + Priority/Effort/Sprint/Assigned)

For JSON output: bash system/scripts/verify-docs.sh --scope claudemd --json

2. Read the sample

Each sample entry shows:

  • doc — the file
  • tier — effective tier (architecture / methodology / tech) and source (per-row, doc, or default)
  • verified — the row's last_verified date
  • claim — the assumption text (truncated to 100 chars; read the full row in the source doc)

For each sample row:

  1. Read the claim. Open the doc. Read the full row context.
  2. Check the implementation: does the code/system still behave as the claim says?
  3. Mark drift: y (drifted — claim is wrong) or n (still true).

Read the full file on GitHub · 117 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. 3d ago First seen · 117 lines · 28 tokens per session scan A 58d296aaf83d

Subscribe to this mod's changes

verify-docs is a skill published in the GitHub repository martineserios/thebrana (3 stars, last pushed yesterday), licensed MIT. It adds 28 tokens to every session and 1,109 once invoked, about $0.0001 per session on Opus 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 2026-09-03.

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