write-markdown-output

Productivity

Write content to a timestamped markdown file. Use when agents need to save plans, reviews, or other outputs.

QUICK START

How to use this skill

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Prompt to paste

I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/data/write-markdown-output/SKILL.md

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Write Markdown Output

Write content to a markdown file with a UTC timestamp in the filename.

Quick Reference

Input	Description
`-s`, `--scope`	Scope/title for the filename (e.g., "sql-validation-plan")
`-c`, `--content`	Markdown content to write
`-o`, `--output-dir`	Output directory path

Output Format

Files are written to: <output-dir>/<timestamp>-<scope>.md

Format	Example
Timestamp	`2026-02-02T025204Z`
Full path	`.claude/agent-outputs/plans/2026-02-02T025204Z-sql-validation-plan.md`

Usage

# Write a plan
uv run python .claude/skills/write-markdown-output/scripts/write_markdown_output.py \
    -s "sql-validation-plan" \
    -c "# Plan\n\nPlan content here..." \
    -o ".claude/agent-outputs/plans"

# Write a review
uv run python .claude/skills/write-markdown-output/scripts/write_markdown_output.py \
    -s "parser-review" \
    -c "# Review\n\nReview content here..." \
    -o ".claude/agent-outputs/reviews"

Exit Codes

Code	Meaning
0	File written successfully
1	Error writing file
2	Usage error (missing arguments)

Output

On success, prints the full path to the created file:

[WRITTEN] .claude/agent-outputs/plans/2026-02-02T025204Z-sql-validation-plan.md

Python Function

from datetime import datetime, timezone
from pathlib import Path

def write_markdown_output(scope: str, content: str, output_dir: Path | str) -> Path:
    """Write content to a timestamped markdown file.

    Args:
        scope: Scope/title for the filename (e.g., "sql-validation-plan").
        content: Markdown content to write.
        output_dir: Output directory path.

    Returns:
        Path: Full path to the created file.
    """
    timestamp = datetime.now(timezone.utc).strftime('%Y-%m-%dT%H%M%SZ')
    output_path = Path(output_dir)
    output_path.mkdir(parents=True, exist_ok=True)

    filename = f"{timestamp}-{scope}.md"
    file_path = output_path / filename
    file_path.write_text(content, encoding="utf-8")

    return file_path

Agent Workflow

Generate content (plan, review, PR description, etc.)
Determine appropriate output directory
Call this skill to write the file
Report the file path to the user

Output Directories

Content Type	Directory
Plans	`.claude/agent-outputs/plans/`
Reviews	`.claude/agent-outputs/reviews/`
PR Descriptions	`.claude/agent-outputs/pr-descriptions/`