/add-frontmatter
Scan all .md files in the project and add or fix YAML frontmatter (summary + read_when) so they can be discovered by context routers like Reflex.
Claude Code
$ npx -y skills add markmdev/meridian --skill add-frontmatter --agent claude-code
Codex
$ npx skills add markmdev/meridian --skill add-frontmatter -a codex -y
Cursor
$ npx skills add markmdev/meridian --skill add-frontmatter -a cursor -y
Gemini CLI
$ npx skills add markmdev/meridian --skill add-frontmatter -a gemini-cli -y
GitHub Copilot
$ npx skills add markmdev/meridian --skill add-frontmatter -a github-copilot -y
OpenCode
$ npx skills add markmdev/meridian --skill add-frontmatter -a opencode -y
Windsurf
$ npx skills add markmdev/meridian --skill add-frontmatter -a windsurf -y
SKILL.md
add-frontmatter.SKILL.mdname: add-frontmatter
description: Scan all .md files in the project and add or fix YAML frontmatter (summary + read_when) so they can be discovered by context routers like Reflex.
Add Frontmatter
Scan every `.md` file in the project and ensure it has the required frontmatter so Reflex can discover and route it.
Required frontmatter format
---
summary: One-line description of what this file covers
read_when:
- keyword or phrase that signals this file is relevant
- another keyword
---
What to skip
- Files already having correct `summary` + `read_when` frontmatter — leave them alone
- Files that have frontmatter with any other keys (e.g. `name`, `description`, `title`) — do not replace or merge, leave them alone
- `node_modules/`, `.git/`, `dist/`, `build/`, `vendor/`, `__pycache__/`
- `.claude/` — agents, skills, commands, hooks all use their own frontmatter schemas
- Files that are purely generated output, changelogs, or boilerplate with no reusable knowledge (e.g. `CHANGELOG.md`, `LICENSE`)
Process
1. Glob all `.md` files, excluding skip dirs 2. For each file: check if frontmatter with `summary` and `read_when` already exists 3. If missing or incomplete: read the file content, infer a concise `summary` and 2-4 `read_when` keywords from the actual content 4. Prepend the frontmatter block (or insert after existing `---` if only partially present) 5. Write the updated file
Quality criteria
- `summary` is a single line, factual, specific — describes what the file actually covers
- `read_when` keywords match how someone would describe a task that needs this file (e.g. `"setting up auth"`, `"debugging routing"`, `"OpenClaw plugin"`)
- Don't invent knowledge not in the file — infer from actual content only
Read more
name: add-frontmatter description: Scan all .md files in the project and add or fix YAML frontmatter (summary + read_when) so they can be discovered by context routers like Reflex.
Add Frontmatter
Scan every `.md` file in the project and ensure it has the required frontmatter so Reflex can discover and route it.
Required frontmatter format
--- summary: One-line description of what this file covers read_when: - keyword or phrase that signals this file is relevant - another keyword ---
What to skip
- Files already having correct `summary` + `read_when` frontmatter — leave them alone
- Files that have frontmatter with any other keys (e.g. `name`, `description`, `title`) — do not replace or merge, leave them alone
- `node_modules/`, `.git/`, `dist/`, `build/`, `vendor/`, `__pycache__/`
- `.claude/` — agents, skills, commands, hooks all use their own frontmatter schemas
- Files that are purely generated output, changelogs, or boilerplate with no reusable knowledge (e.g. `CHANGELOG.md`, `LICENSE`)
Process
1. Glob all `.md` files, excluding skip dirs 2. For each file: check if frontmatter with `summary` and `read_when` already exists 3. If missing or incomplete: read the file content, infer a concise `summary` and 2-4 `read_when` keywords from the actual content 4. Prepend the frontmatter block (or insert after existing `---` if only partially present) 5. Write the updated file
Quality criteria
- `summary` is a single line, factual, specific — describes what the file actually covers
- `read_when` keywords match how someone would describe a task that needs this file (e.g. `"setting up auth"`, `"debugging routing"`, `"OpenClaw plugin"`)
- Don't invent knowledge not in the file — infer from actual content only
Meridian makes Claude Code more reliable on real projects. It adds persistent project context, smarter session handoff, and lightweight workflow enforcement so Claude is less likely to lose the plot halfway through a long task.
Other skills on meridian.
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brainstorming
You MUST use this before any creative work - creating features, building components, adding functionality, modifying behavior, or…
ask-matt
Ask which skill or flow fits your situation. A router over the skills in this repo.
Questions about add-frontmatter.
- Which coding agents can use add-frontmatter?
- add-frontmatter installs in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI, using each agent's flag shown on this page. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.

