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Official agent skill

Update Markdown File Index

by github in github/awesome-copilot

Update a markdown file section with an index/table of files from a specified folder.

OfficialMITAuto-check passedDocuments & Office

Install Update Markdown File Index

skills CLI
$ npx skills add github/awesome-copilot --skill update-markdown-file-index -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install github/awesome-copilot update-markdown-file-index --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/update-markdown-file-index .claude/skills/update-markdown-file-index && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
update-markdown-file-index
GitHub stars
40k
Used in
2 other repos
Token cost
~668 tokens
SKILL.md length
278 words
Files
1
Skills in repo
417
Repo updated
First seen
Licence
MIT

At a glance

Update a markdown file section with an index/table of files from a specified folder.

  • Works in 6 steps: Scan: Read the target markdown file… → Discover: List all files in the… → Analyze: Identify if an existing… → …
  • Tasks that involve Markdown
  • SKILL.md covers Process, File Analysis, Table Structure Options and Update Strategy, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Update Markdown File Index is an agent skill from github/awesome-copilot, published by the product's own GitHub organization. Update a markdown file section with an index/table of files from a specified folder.

Its SKILL.md is about 670 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Documents & Office, covering Markdown. The repository describes itself as: Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot. The licence is MIT.

When your agent uses it

  • Tasks that involve Markdown

Example prompts

  • “/update-markdown-file-index”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Scan: Read the target markdown file ${file} to understand existing structure
  2. Discover: List all files in the specified folder ${input:folder} matching pattern ${input:pattern}
  3. Analyze: Identify if an existing table/index section exists to update, or create new structure
  4. Structure: Generate appropriate table/list format based on file types and existing content
  5. Update: Replace existing section or add new section with file index
  6. Validate: Ensure markdown syntax is valid and formatting is consistent

What it can do on your machine

Read from SKILL.md and the folder at commit 727ff2e. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Update Markdown File Index loads about 668 tokens when it runs. Until then it costs about 28 tokens; SKILL.md has 278 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~28
When it runs · the whole SKILL.md, loaded when a task matches
~668

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from github/awesome-copilot at commit 727ff2e, republished under its MIT licence (© github). 278 words, ~668 tokens.

Download SKILL.mdSave it as .claude/skills/update-markdown-file-index/SKILL.md (or your agent's skills folder).
name
update-markdown-file-index
description
Update a markdown file section with an index/table of files from a specified folder.

Update Markdown File Index

Update markdown file ${file} with an index/table of files from folder ${input:folder}.

Process

  1. Scan: Read the target markdown file ${file} to understand existing structure
  2. Discover: List all files in the specified folder ${input:folder} matching pattern ${input:pattern}
  3. Analyze: Identify if an existing table/index section exists to update, or create new structure
  4. Structure: Generate appropriate table/list format based on file types and existing content
  5. Update: Replace existing section or add new section with file index
  6. Validate: Ensure markdown syntax is valid and formatting is consistent

File Analysis

For each discovered file, extract:

  • Name: Filename with or without extension based on context
  • Type: File extension and category (e.g., .md, .js, .py)
  • Description: First line comment, header, or inferred purpose
  • Size: File size for reference (optional)
  • Modified: Last modified date (optional)

Table Structure Options

Choose format based on file types and existing content:

Option 1: Simple List
markdown
## Files in ${folder}

- [filename.ext](path/to/filename.ext) - Description
- [filename2.ext](path/to/filename2.ext) - Description
Option 2: Detailed Table
markdown
| File | Type | Description |
|------|------|-------------|
| [filename.ext](path/to/filename.ext) | Extension | Description |
| [filename2.ext](path/to/filename2.ext) | Extension | Description |
Option 3: Categorized Sections

Group files by type/category with separate sections or sub-tables.

Update Strategy

  • 🔄 Update existing: If table/index section exists, replace content while preserving structure
  • ➕ Add new: If no existing section, create new section using best-fit format
  • 📋 Preserve: Maintain existing markdown formatting, heading levels, and document flow
  • 🔗 Links: Use relative paths for file links within the repository

Section Identification

Look for existing sections with these patterns:

  • Headings containing: "index", "files", "contents", "directory", "list"
  • Tables with file-related columns
  • Lists with file links
  • HTML comments marking file index sections

Requirements

  • Preserve existing markdown structure and formatting
  • Use relative paths for file links
  • Include file descriptions when available
  • Sort files alphabetically by default
  • Handle special characters in filenames
  • Validate all generated markdown syntax

© github, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/update-markdown-file-index of github/awesome-copilot.

Open the folder on GitHubat commit 727ff2e

Used in 2 other repositories

We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in github/awesome-copilot, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Update Markdown File Index next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Update Markdown File Index compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Update Markdown File Index this skillgithub/awesome-copilot40k2 repos~668Automated safety check: PassMIT
Markdown Article FormatterJimLiu/baoyu-skills26k6 repos~3.5kAutomated safety check: PassMIT
MarkitdownImCa0/just-laws78114 repos~3.2kAutomated safety check: NotesMIT
Obsidian MarkdownAtmosphere/atmosphere3.8k20 repos~1.3kAutomated safety check: PassApache-2.0
Gzh Designisjiamu/gzh-design-skill3.9k1 repos~2.2kAutomated safety check: PassAGPL-3.0
Crosspostingwasp-lang/wasp19k—~1.1kAutomated safety check: PassMIT

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Categories

Questions about Update Markdown File Index

What does Update Markdown File Index do?

Update a markdown file section with an index/table of files from a specified folder. Update Markdown File Index is an agent skill from github/awesome-copilot, published by the product's own GitHub organization. Update a markdown file section with an index/table of files from a specified folder.

When should I use Update Markdown File Index?

Update Markdown File Index fits situations like: tasks that involve Markdown.

How do I install Update Markdown File Index in Claude Code?

Run `npx skills add github/awesome-copilot --skill update-markdown-file-index -a claude-code`. Or copy the skill folder (skills/update-markdown-file-index in github/awesome-copilot) into .claude/skills/update-markdown-file-index in your project. Claude Code loads it when a task matches its description.

How do I install Update Markdown File Index in Codex?

Run `npx skills add github/awesome-copilot --skill update-markdown-file-index -a codex`. Or copy the skill folder (skills/update-markdown-file-index in github/awesome-copilot) into .agents/skills/update-markdown-file-index in your project. Codex loads it when a task matches its description.

Can I use Update Markdown File Index in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add github/awesome-copilot --skill update-markdown-file-index -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/update-markdown-file-index, .gemini/skills/update-markdown-file-index, .github/skills/update-markdown-file-index and .opencode/skills/update-markdown-file-index in your project.

What does Update Markdown File Index need to run?

SKILL.md names no scripts, command-line tools or credentials: Update Markdown File Index is instructions for the agent only.

Does Update Markdown File Index access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Update Markdown File Index safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Update Markdown File Index use?

Update Markdown File Index is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Update Markdown File Index use?

About 668 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Update Markdown File Index?

Skills that share tags, products or a category with Update Markdown File Index: Markdown Article Formatter (JimLiu/baoyu-skills, 26k stars), Markitdown (ImCa0/just-laws, 781 stars), Obsidian Markdown (Atmosphere/atmosphere, 3.8k stars) and Gzh Design (isjiamu/gzh-design-skill, 3.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Update Markdown File Index?

github (a GitHub organization, an official publisher) maintains it in github/awesome-copilot, which has 39,748 GitHub stars. The repository holds 417 skills in this directory. The repository was last updated on October 7, 2026.

Source: github/awesome-copilot on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.