Rewrote the skill authoring factory skill from scratch against the agentskills.io specification. Renamed write-skill → skill-write (name now matches directory per spec). skill-write: - Full scaffold via new-skill.sh (annotated templates for SKILL.md, README.md, scripts/, references/, assets/) - validate.sh checks all spec constraints deterministically (name format/length, description length, placeholder detection, line count, script rules) - SKILL.md body includes description rules, body discipline, patterns, and scripts guidance with "why" rationale throughout - Templates usable standalone by agents and humans skill-audit: - Structural validation (via validate.sh) + seven qualitative dimensions - Produces PASS/FAIL/SUGGESTION punch list with per-FAIL fix proposals - Report-only: does not apply fixes Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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scripts/
Executable code bundled with this skill. Agents run scripts in this directory to perform repeatable operations rather than reinventing the logic each run.
When to add a script
Add a script when agents independently reinvent the same logic across runs — building the same parser, chart, or validation routine from scratch each time. Bundle it here once, tested and reliable.
Script requirements (agentskills.io)
Scripts must be designed for non-interactive, agentic execution:
- No interactive prompts — agents run in non-interactive shells. Accept all input via flags, env vars, or stdin. A script that blocks on TTY input hangs indefinitely.
- Expose
--help— this is how agents learn your script's interface. Keep the output concise; it enters the agent's context window. - Structured output — write data (JSON, CSV, TSV) to stdout. Write progress, warnings, and diagnostics to stderr.
- Idempotent — prefer "create if not exists" over "create and fail on duplicate". Agents may retry on failure.
- Meaningful exit codes —
0for success, non-zero for failure. Use distinct codes for different failure types; document them in--help. - Dry-run support — add
--dry-runfor destructive operations.
Self-contained scripts
Bundle dependencies inline so the agent can run the script with a single command.
Python (PEP 723 + uv):
# /// script
# dependencies = ["requests>=2.31,<3"]
# requires-python = ">=3.11"
# ///
import requests
uv run scripts/my-script.py
If no scripts are needed
Delete this README and the scripts/ directory entirely.