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.
npx agentmods add skills/mphinance/alpha-skills/skill-forgenpx skills add mphinance/alpha-skills --skill skill-forgegit clone --depth 1 https://github.com/mphinance/alpha-skillsWrote 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.
[](https://agentmods.dev/skills/mphinance/alpha-skills/skill-forge)<a href="https://agentmods.dev/skills/mphinance/alpha-skills/skill-forge"><img src="https://agentmods.dev/badge/skills/mphinance/alpha-skills/skill-forge.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00120 | $0.01365 |
| Opus 5 | $0.00060 | $0.00682 |
| Sonnet 5 | $0.00024 | $0.00273 |
| Haiku 4.5 | $0.00012 | $0.00136 |
Grade A, and why
skill-forge 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
skill-forge
The skill of skills, for skills. Builds new ones, refines existing ones, and mines chat transcripts for what to build next.
When to invoke
Three modes. Pick by what the user says.
| Mode | Triggers | What it does |
|---|---|---|
| forge | "skill-forge a thing that does X", "forge a skill that ...", "build me a skill for ..." | Ask 2-3 clarifying questions, scaffold ~/.claude/skills/<name>/SKILL.md from the template, open PR to mphinance/alpha-skills. |
| audit | "skill-forge audit", "skill audit", "/skill-forge", "what skills should I build" | Run the miner over ~/.claude/projects/**/*.jsonl, present reports/latest.md, ask which candidates to forge or refine. |
| refine | "refine my skills", "skill-forge refine ", "improve the skill" | Propose additive-only changes (new trigger phrase, new example, new section) to an existing skill. Opens PR with diff. |
Flow
forge mode
- Ask the user 2-3 questions max: skill name (kebab-case), one-sentence purpose, primary trigger phrase. Don't over-interview.
- Run the scaffolder.
The scaffolder readspython scripts/forge_new.py --name <name> --brief "<one-sentence purpose>"templates/SKILL.md.tmpland substitutes{{name}},{{description}},{{title}},{{when_to_invoke}},{{flow}},{{hard_rules}}. - Open the freshly written
~/.claude/skills/<name>/SKILL.md. Review with the user. Tighten copy if needed. - Publish.
This clonespython scripts/publish.py <name>mphinance/alpha-skillsinto~/.cache/skill-forge/alpha-skillsif missing, branchesskill-forge/<name>-<short-ts>, commits, pushes, opens PR. Prints PR URL. Stop there. User reviews and merges.
audit mode
- Run the miner.
python scripts/mine_chats.py --days 30 - Read
reports/latest.mdaloud (the markdown report) andreports/latest.json(structured candidates). - Present the three sections: new-skill candidates, refinement candidates, pain points. Ask which to act on.
- For each chosen new-skill candidate, drop into forge mode with
publish.py --from-auditso the PR body cites the mined evidence. - For each chosen refinement candidate, drop into refine mode.
What ships with it
11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- feature_list.json 6.8 KB
- proposals/orchestrate/CHANGES.diff 16 KB
- proposals/skill-forge/PR_BODY.md 433 B
- proposals/substack-draft-status/PR_BODY.md 473 B
- reports/latest.json 28 KB
- reports/latest.md 22 KB
- scripts/forge_new.py 4.9 KB runs code
- scripts/mine_chats.py 22 KB runs code
- scripts/publish.py 9.9 KB runs code
- SPEC.md 5.5 KB
- templates/SKILL.md.tmpl 274 B
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.
- 5d ago First seen · 92 lines · 120 tokens per session scan A 471bcd476a07
skill-forge is a skill published in the GitHub repository mphinance/alpha-skills (19 stars, last pushed 7d ago), licensed MIT. It adds 120 tokens to every session and 1,365 once invoked, about $0.0006 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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