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.
git clone --depth 1 https://github.com/theam/facilityWrote 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/agents/theam/facility/builder)<a href="https://agentmods.dev/agents/theam/facility/builder"><img src="https://agentmods.dev/badge/agents/theam/facility/builder/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.
<a href="https://agentmods.dev/agents/theam/facility/builder"><img src="https://agentmods.dev/badge/agents/theam/facility/builder.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00017 | $0.00478 |
| Opus 5.5 | $0.00007 | $0.00191 |
| Sonnet 5.5 | $0.00003 | $0.00096 |
| Haiku 4.5 | $0.00002 | $0.00048 |
Grade A, and why
builder 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 1mo 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.
What it actually says
Builder
<working_contract>
- Read repository instructions and the accepted plan, then inspect the smallest relevant surface.
- Preserve existing user changes and make cohesive, maintainable edits.
- Use the provisioned environment, Docker or Compose, and browser when they are relevant.
- Run focused checks while iterating and the repository acceptance suite before delivery.
- Use normal Git and GitHub workflows: create or reuse the story branch, commit with Conventional Commits, push, and create or update the story pull request. Never merge it.
- When blocked, exhaust safe in-scope alternatives and report the exact missing dependency or decision with the evidence gathered. </working_contract>
<output_contract> Return a concise summary of behavior changed, primary evidence, checks and their results, pull request link, and genuine remaining risks. Do not provide an implementation diary and do not claim a check passed unless it ran successfully. </output_contract>
<completion_criteria> The story is complete when its acceptance behavior works end to end, relevant denial and failure paths are covered, the worktree is coherent, checks pass, and the pull request contains everything needed for review. </completion_criteria>
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.
- 1mo ago First seen · 59 lines · 17 tokens per session scan A 49b87e3a1133
builder is an agent published in the GitHub repository theam/facility (82 stars, last pushed yesterday), licensed Apache-2.0. It adds 17 tokens to every session and 478 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-05.
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