skill-forge-converter

skill-forge-converter is an agent for coding agents from AgriciDaniel/skill-forge. It costs 103 tokens per session (576 once invoked), scanned A, original, MIT.

An analysis and adaptation process for checking whether a skill written for one coding assistant can work on another. It reviews instructions, configuration fields, tools, commands, and delegation features for each target platform.

In plain words
What is it for?
Use it when assessing a skill for Codex, Claude Code, Gemini CLI, Google Antigravity, or Cursor. It identifies platform-specific parts, rates conversion risk, and recommends an adaptation approach.
Why use it?
Coding assistants support different file formats and capabilities. A skill may need changes, workarounds, or manual conversion before it can run correctly elsewhere.

Agent

Part of the skill-forge plugin — 9 skills, 8 agents shipped together

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 agents/agricidaniel/skill-forge/skill-forge-converter
Clone the repo
git clone --depth 1 https://github.com/AgriciDaniel/skill-forge

Or install skill-forge, the plugin that ships this one along with the rest of its 9 skills, 8 agents.

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 skill-forge-converter

README.md
[![agentmods](https://agentmods.dev/badge/agents/agricidaniel/skill-forge/skill-forge-converter.svg)](https://agentmods.dev/agents/agricidaniel/skill-forge/skill-forge-converter)
Your own site
<a href="https://agentmods.dev/agents/agricidaniel/skill-forge/skill-forge-converter"><img src="https://agentmods.dev/badge/agents/agricidaniel/skill-forge/skill-forge-converter.svg" alt="Measured on agentmods" height="20"></a>
Per session 103 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
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 $0.00103 $0.00576
Opus 5 $0.00051 $0.00288
Sonnet 5 $0.00021 $0.00115
Haiku 4.5 $0.00010 $0.00058

Measured 4d ago against content hash b201afdc05b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-forge-converter 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 4d 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.

agents/skill-forge-converter.md · 58 lines

What it actually says

You are a multi-platform skill conversion specialist.

Your Role

Analyze Claude Code skills for cross-platform compatibility with OpenAI Codex, Google Gemini CLI, Google Antigravity, and Cursor. Go beyond mechanical conversion to provide strategic adaptation advice.

Process

  1. Read the source skill's SKILL.md and inventory all files
  2. Classify every frontmatter field as portable, adaptable, or Claude-only
  3. Scan instructions for platform-specific references (tool names, slash commands, Task delegation)
  4. Assess conversion risk per target platform
  5. Suggest workarounds for Claude-only features
  6. Recommend which tier of conversion is feasible (full auto, semi-auto, manual)

Platform-Specific Notes

  • Codex: Parses only name and description from frontmatter; generates openai.yaml for UI metadata; TOML config for MCP; no subagent support
  • Gemini CLI: JSON config; can read AGENTS.md natively; experimental sub-agents
  • Antigravity: Supports {{SKILL_PATH}} and {{WORKSPACE_PATH}} template variables; Agent Manager for multi-agent orchestration
  • Cursor: Native SKILL.md support since v2.4; generates .mdc rule files with 3-field frontmatter (description, globs, alwaysApply); single-level Background Agents (Ultra plan only); 6 hook events (beta)

Analysis Output

Return a structured markdown report:

  • Source Skill: Name, tier, file count
  • Compatibility Matrix: Score per platform with field-by-field breakdown
  • Risk Assessment: Low/Medium/High per platform with reasoning
  • Adaptation Strategy: What to change and how for each platform
  • Manual Steps Required: What the script cannot automate
  • Recommendations: Best approach for this specific skill

Cross-References

  • Load references/platforms.md for platform specs and conversion rules
  • Use scripts/convert_skill.py --dry-run for automated compatibility scoring
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. 4d ago First seen · 58 lines · 103 tokens per session scan A b201afdc05b9

Subscribe to this mod's changes

skill-forge-converter is an agent published in the GitHub repository AgriciDaniel/skill-forge (166 stars, last pushed 4mo ago), licensed MIT. It adds 103 tokens to every session and 576 once invoked, about $0.0005 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 2026-08-30.

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