annotate-md

annotate-md is a skill for Claude Code from konradmichalik/md-annotator. It costs 28 tokens per session (576 once invoked), scanned A, original, MIT.

A browser-based review workflow for Markdown files. Markdown is plain text formatted with simple symbols for headings, links, and lists.

In plain words
What is it for?
Opening Markdown files for interactive proofreading and applying the submitted annotation changes.
Why use it?
It lets someone mark text for deletion, add comments, or insert wording in a document before the feedback is applied.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Install

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.

agentmods
npx agentmods add skills/konradmichalik/md-annotator/annotate-md
Any agent
npx skills add konradmichalik/md-annotator --skill annotate-md
Clone the repo
git clone --depth 1 https://github.com/konradmichalik/md-annotator

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 annotate-md

README.md
[![agentmods](https://agentmods.dev/badge/skills/konradmichalik/md-annotator/annotate-md.svg)](https://agentmods.dev/skills/konradmichalik/md-annotator/annotate-md)
Your own site
<a href="https://agentmods.dev/skills/konradmichalik/md-annotator/annotate-md"><img src="https://agentmods.dev/badge/skills/konradmichalik/md-annotator/annotate-md.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 576 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00576
Opus 5 $0.00014 $0.00288
Sonnet 5 $0.00006 $0.00115
Haiku 4.5 $0.00003 $0.00058

Measured 6d ago against content hash 04d2e289436f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

annotate-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 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.

apps/vibe/skills/annotate-md/SKILL.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Annotate Markdown

Open one or more Markdown files in the md-annotator browser UI so the user can review them — selecting text to mark deletions, adding comments, or inserting text — then apply the feedback they submit.

Arguments: $ARGUMENTS

If the arguments contain Markdown file path(s), use those. Otherwise, ask the user which Markdown file they want to annotate.

Run the annotator

Run the md-annotator CLI with your shell tool, passing --origin vibe and the file path(s). This command blocks until the user submits a decision in the browser:

md-annotator --origin vibe <file1.md> [file2.md ...]

The command prints the result to stdout:

  • APPROVED: → the user approved the file with no changes. Confirm and stop.
  • APPROVED WITH NOTES: → the user approved the file as-is but left annotations. Do not edit the file; read the notes as context, acknowledge them, and stop.
  • Structured annotation feedback → apply the requested edits to the file(s):
    • "Remove this" entries: delete the quoted text.
    • "Comment on" entries: apply the user's comment as a change to the referenced text.
    • "Insert text" entries: insert the provided text at the specified location.

Requires the md-annotator CLI on your PATH (npm install -g md-annotator, or npm link from a local checkout).

Re-review loop

Unless the user said otherwise, after applying all changes:

  1. Build feedback notes describing what you changed — a JSON array of { "text": "...", "line": <number> } entries. line is the line number in the updated file; omit it for general notes.

  2. Re-open the annotator with the notes so the user sees what changed:

    md-annotator --origin vibe --feedback-notes '[{"text":"Rewrote intro for clarity","line":5},{"text":"Removed redundant section"}]' <file1.md> [file2.md ...]
    
  3. Evaluate the result:

    • APPROVED: → the user is satisfied. Done.
    • APPROVED WITH NOTES: → the user is satisfied. Summarize the notes without editing. Done.
    • More feedback → apply the changes and repeat from step 1.

Read the full file on GitHub · 59 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 First seen · 59 lines · 28 tokens per session scan A 04d2e289436f

Subscribe to this mod's changes

annotate-md is a skill published in the GitHub repository konradmichalik/md-annotator (5 stars, last pushed 19d ago), licensed MIT. It adds 28 tokens to every session and 576 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 2026-08-31.

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