foundry

foundry is a plugin for Claude Code from alphabravo-oss/guild. Its manifest loads nothing; the 4 skills, 4 commands, 12 agents it bundles cost 1,007 tokens per session together, scanned A, original, MIT.

A Claude Code plugin that turns a written Forge plan into parallel implementation tasks, then repeatedly checks and fixes the results.

In plain words
What is it for?
Use it to build planned features or migrations, including existing-code projects, while checking requirements through several specialized verification streams.
Why use it?
It combines task breakdown, automated validation, evidence checks, defect fixing, and final review in one build process.

Plugin for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: mentions Claude Code.

Good fit Use it to build planned features or migrations, including existing-code projects, while checking requirements through several specialized verification streams.

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Install in Claude Code
/plugin marketplace add alphabravo-oss/guild
/plugin install foundry
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.

Clone the repo
git clone --depth 1 https://github.com/alphabravo-oss/guild

Made for: Claude Code.

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 foundry

README.md
[![agentmods](https://agentmods.dev/badge/plugins/alphabravo-oss/guild/foundry/github.svg)](https://agentmods.dev/plugins/alphabravo-oss/guild/foundry)
Your own site
<a href="https://agentmods.dev/plugins/alphabravo-oss/guild/foundry"><img src="https://agentmods.dev/badge/plugins/alphabravo-oss/guild/foundry/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for foundry

Your own site · 80×15
<a href="https://agentmods.dev/plugins/alphabravo-oss/guild/foundry"><img src="https://agentmods.dev/badge/plugins/alphabravo-oss/guild/foundry.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 4 skills, 4 commands, 12 agents cost 1,007 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

foundry 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 13d 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.

plugins/foundry/.claude-plugin/plugin.json · 33 lines

What it actually says

{
  "name": "foundry",
  "description": "Autonomous build-verify-fix loop for Claude Code. Reads a Forge spec, decomposes it into castings with pre-authored teammate prompts, validates through an 11-dimension F0.9 gate (including F0.7 intent-carrier coverage), builds in parallel waves with server-side evidence re-execution and per-requirement-ID binding, runs up to 8 verification streams (TRACE, FLOW_TRACE, PROVE, RESEARCH_AUDIT, COVERAGE_DIFF, SIGHT, TEST/PROBE, TEST_OBSERVATIONS), grinds defects to zero, then assays with fresh eyes. Brownfield runs consume a flow delta; greenfield and cosmetic runs use the end-state pipeline. Forge plans. Foundry builds.",
  "version": "4.11.2",
  "author": {
    "name": "AlphaBravo"
  },
  "userConfig": {
    "model": {
      "type": "string",
      "title": "Agent model",
      "description": "Model for this plugin's config-steerable agents. Accepted values: opus, sonnet, haiku, fable, inherit. Leave unset to change nothing — each agent's own model pin governs.",
      "required": false
    }
  },
  "mcpServers": {
    "foundry": {
      "command": "uv",
      "args": [
        "run",
        "--project",
        "${CLAUDE_PLUGIN_ROOT}/mcp-server",
        "foundry-mcp",
        "--project-root",
        "${CLAUDE_PROJECT_DIR}"
      ],
      "env": {
        "FOUNDRY_MODEL": "${user_config.model}"
      }
    }
  }
}
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. 13d ago Changed 396b779d0499
  2. 21d ago Changed 9b6c1aea5897
  3. 1mo ago Changed 8dd409a2c7de
  4. 1mo ago Changed 010f74d51ede
  5. 1mo ago Changed 6a442f7571e3
  6. 1mo ago First seen · 33 lines scan A d60413d34b7e

Subscribe to this mod's changes

foundry is a plugin published in the GitHub repository alphabravo-oss/guild (2 stars, last pushed 11d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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 2026-08-31.