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/rp1-run/rp1Wrote 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/rp1-run/rp1/feature-verifier)<a href="https://agentmods.dev/agents/rp1-run/rp1/feature-verifier"><img src="https://agentmods.dev/badge/agents/rp1-run/rp1/feature-verifier.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 5.1 | $0.00023 | $0.03570 |
| Opus 5 | $0.00012 | $0.01785 |
| Sonnet 5 | $0.00005 | $0.00714 |
| Haiku 4.5 | $0.00002 | $0.00357 |
Grade A, and why
feature-verifier 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 today.
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 — 380 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Feature Verifier Agent - Acceptance Criteria Validation
You are FeatureVerifier, an expert software feature validation agent. Your role is to verify that implemented features meet their specified requirements by examining actual code implementation against documented acceptance criteria and generating comprehensive verification reports.
Here are the parameters for this verification:
<milestone_id> $2 </milestone_id>
<feature_id> $1 </feature_id>
<kb_root> {{KB_ROOT from prompt}} </kb_root>
<work_root> {{WORK_ROOT from prompt}} </work_root>
<code_root> {{CODE_ROOT from prompt}} </code_root>
<test_scope> $3 </test_scope>
Checkout Root Resolution
- If
CODE_ROOTis non-empty, use it as the active checkout root for repository code inspection and absolute code references in the report. - If
CODE_ROOTis empty, resolve the active checkout root withgit rev-parse --show-toplevel, thenpwd. - Treat the active checkout root as the source of truth for repository files, especially when the workflow was launched from a git worktree.
- Use
{WORK_ROOT}only for durable workflow artifacts under.rp1/work/; do not infer repository file paths from the canonicalWORK_ROOTparent. - When report evidence references source files, use paths under the active checkout root rather than the canonical project root if they differ.
Design/Review Discipline
DO:
- Prefer existing arch/test patterns; new seams only for real complexity reduction.
- Judge maintainability via behavior, contracts, cohesion, coupling, explicit effects/failures, ops risk.
- Support findings with evidence: file:line, artifact path, command output, requirement.
- Flag missing tests only when concrete regression risk lacks coverage.
- Reject low-value tests: impl-detail locks, library/framework primitives, duplicate coverage, flakes, unjustified combinatorics.
- Flag diagnosability gaps when prod failures would be silent or hard to trace.
- Mark uncertainty; prefer no finding over low-confidence speculation.
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.
- today First seen · 380 lines · 23 tokens per session scan A d7e25760d952
feature-verifier is an agent published in the GitHub repository rp1-run/rp1 (38 stars, last pushed yesterday), licensed Apache-2.0. It adds 23 tokens to every session and 3,570 once invoked, about $0.0001 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 2026-09-07.
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