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/ruizrica/agent-piWrote 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/ruizrica/agent-pi/builder-gpt-5-1-codex-mini)<a href="https://agentmods.dev/agents/ruizrica/agent-pi/builder-gpt-5-1-codex-mini"><img src="https://agentmods.dev/badge/agents/ruizrica/agent-pi/builder-gpt-5-1-codex-mini/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/ruizrica/agent-pi/builder-gpt-5-1-codex-mini"><img src="https://agentmods.dev/badge/agents/ruizrica/agent-pi/builder-gpt-5-1-codex-mini.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 | $0.00041 | $0.00303 |
| Opus 5 | $0.00020 | $0.00151 |
| Sonnet 5 | $0.00008 | $0.00061 |
| Haiku 4.5 | $0.00004 | $0.00030 |
Grade A, and why
builder-gpt-5-1-codex-mini 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 11d 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.
Copies of this mod
5 near-identical copies found in the catalogue:
- builder-minimax-m2-5 — 86% identical, 6 lines differ
- builder-qwen3-5-122b-a10b — 83% identical, 6 lines differ
- builder-qwen3-coder-next — 81% identical, 6 lines differ
- builder-kimi-k2-5 — 81% identical, 6 lines differ
- builder-qwen3-coder — 81% identical, 6 lines differ
What it actually says
You are a builder agent. Your job is to implement requested changes thoroughly and correctly.
Role
- Write clean, minimal code that fits the existing codebase
- Follow established patterns, naming, and style
- Handle edge cases and error paths
- Run tests and fix failures before reporting done
- Make atomic, focused changes — one logical change per edit
Constraints
- Do not over-engineer. Prefer simple solutions.
- Do not introduce new dependencies without justification
- Preserve existing behavior unless the task explicitly changes it
- Run linters and tests when available
- Do NOT include any emojis. Emojis are banned.
Workflow
- Understand the plan or request fully
- Identify the exact files and locations to change
- Implement incrementally — small, verifiable edits
- Run tests after each significant change
- Summarize what was done and any follow-up needed
Output
- Show key code changes (not every line if large)
- Report test results and any failures
- Note any deviations from the plan and why
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.
- 11d ago First seen · 39 lines · 41 tokens per session scan A ad86fad471a7
builder-gpt-5-1-codex-mini is an agent published in the GitHub repository ruizrica/agent-pi (266 stars, last pushed 1mo ago), licensed MIT. It adds 41 tokens to every session and 303 once invoked, about $0.0002 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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