forge-core

forge-core is a skill for Claude Code, Codex from ForgeyClap/claude-forge. It costs 65 tokens per session (9,438 once invoked), scanned A, original, MIT.

A shared operating guide for Forge, a system that coordinates coding agents to plan, build, review, and deliver project work. It can also run a local Forge dashboard.

In plain words
What is it for?
Use it to coordinate multi-agent builds, automation, research, code review, and project delivery.
Why use it?
It gives an agent a repeatable way to organize larger tasks and review their results.

Skill for Claude CodeCodex

Written for Claude Code and Codex: installed under .claude/, but also runs codex exec. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

Good fit Use it to coordinate multi-agent builds, automation, research, code review, and project delivery.

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Install with agentmods
npx agentmods add skills/forgeyclap/claude-forge/forge-core
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.

Any agent
npx skills add ForgeyClap/claude-forge --skill forge-core
Clone the repo
git clone --depth 1 https://github.com/ForgeyClap/claude-forge

Made for: Claude Code, Codex.

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 forge-core

README.md
[![agentmods](https://agentmods.dev/badge/skills/forgeyclap/claude-forge/forge-core.svg)](https://agentmods.dev/skills/forgeyclap/claude-forge/forge-core)
Your own site
<a href="https://agentmods.dev/skills/forgeyclap/claude-forge/forge-core"><img src="https://agentmods.dev/badge/skills/forgeyclap/claude-forge/forge-core.svg" alt="Measured on agentmods" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,438 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. ✓ AI security review Sonnet 5 · 7 Sept 2026 📄 Read the review
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 5.1 $0.00065 $0.09438
Opus 5 $0.00032 $0.04719
Sonnet 5 $0.00013 $0.01888
Haiku 4.5 $0.00006 $0.00944

Measured 5d ago against content hash c39cc18bc910, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

forge-core 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.

global-install/.claude/skills/forge-core/SKILL.md · 229 lines

How it starts

The opening of the file, as written. The whole thing — 229 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Forge Core (global, lightweight)

This is the global, security-light Forge layer. It carries instructions only — no hooks, no security gates, nothing that runs automatically across your projects. The full Forge V2 (command + skills + playbooks) is installed per project via the installer below.

What Forge does (Lead-Agent studio)

Lead Agent (you) → Mission Blueprint + Skill Discovery → dynamic role-based subagents (ECC-first, incl. custom roles) → outputs/artifacts → Lead Review → rework/fix loop → merge → optional Codex review → quality gate → honest forge-report. The Lead Agent plans before executing and decides the agents and skills — the role/skill examples in the playbooks are guidance, not fixed menus or limits. Pick the smallest relevant team; small task = small team, large/high-end = larger swarm. Don't lock to a fixed number; don't over-spawn to look impressive.

Skill Discovery + custom subagents/skills (Lead has final control)

Before assigning subagents the Lead Agent runs Skill Discovery: inspect the user mission, project type, files/frameworks/tools, package/config, project memory/profile, existing project-local skills, global Forge skills, available ECC agents/skills, MCP/tools, quality target, required outputs, and risks. It then discovers, chooses, assigns, or creates the right skills per project (not just "use the listed ones"). For unknown project types, create a custom taxonomy + custom subagents + custom-skill strategy — never force-fit into website/n8n/RAG/scraping. Skill gaps: create a safe project-local custom skill (.claude/skills/<name>/SKILL.md, scoped + documented + linked to a real work package), or a scaffold for approval, or a labeled native fallback, or mark BLOCKED. No executable subagent runs without an assigned skill/method. Every subagent + custom role + custom skill must be real (reason + work package + output or honest BLOCKED) and visible in dashboard/ledger/report — never fake one.

Read the full file on GitHub · 229 lines

Files

What ships with it

3 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.

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. 5d ago First seen · 229 lines · 0 tokens per session scan E c39cc18bc910

Subscribe to this mod's changes

forge-core is a skill published in the GitHub repository ForgeyClap/claude-forge (2 stars, last pushed 1mo ago), licensed MIT. It adds 65 tokens to every session and 9,438 once invoked, about $0.0003 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 2026-09-03.