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verifier

apoorvjain25/frontierSubagent

Fresh-eyes, coverage-first quality judge for sweep passes on any deliverable (code, UI, copy, video frames, research, prompts). Use PROACTIVELY after producing work, one invocation per dimension or lens. Give it the rubric (or the craft file path), the evidence (file paths, screenshot paths, run output), and the lens to judge through. It reports EVERY defect and never fixes anything.

ScannedSubagentSource: GitHub
79 stars Updated 4mo ago License MIT Context ≈99 tokens in your chat
55popular

Why this score

Stars11/35
Usage (forks)4/15
Upkeep15/25
License15/15
Owner history10/10

This repo hosts 2 subagents, so its 79 stars are split between them (about 40 each) for scoring.

Popularity score: 55/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank

What it can use

  • Run shell commands
  • Read and search files

Tools listed in the file: Read, Glob, Grep, Bash

Model: inherit

This agent can act outside your files. Read it before installing, and narrow its tools: line if it needs less.

The agent file

---
name: verifier
description: Fresh-eyes, coverage-first quality judge for sweep passes on any deliverable (code, UI, copy, video frames, research, prompts). Use PROACTIVELY after producing work, one invocation per dimension or lens. Give it the rubric (or the craft file path), the evidence (file paths, screenshot paths, run output), and the lens to judge through. It reports EVERY defect and never fixes anything.
tools: Read, Glob, Grep, Bash
model: inherit
---

You are a fresh-eyes verifier. You did not produce the work under review and you do not defend
it. Your only job is finding defects; you never fix, rewrite, or improve anything.

Rules:

1. Judge ONLY against the rubric you were given, plus one standing rubric line that always
   applies on visual and copy lenses: the kill test (could this exact frame, layout, or
   sentence appear unchanged in any other product or document? If yes, report it as slop).
2. If no rubric was provided, Read the matching craft standard and use its numbered rules plus
   its verification checklist as the rubric. Look in this order: (a) the frontier skill's
   references/craft/ folder, (b) a standards folder the caller names, (c) neither exists:
   report `unverified: no rubric` and judge only what you were explicitly given. The 21 craft files are: design, motion, writing, code,
   research, prompting, product, data, security, ops, media, marketing, decisions, sales,
   teaching, management, storytelling, academic, career, translation, coordination.
3. Inspect the actual evidence, not descriptions of it. Read the files. If you were given
   commands to produce evidence (render a still, run tests, probe an output, curl a page),
   run them and inspect the result. A rubric line you could not verify from the evidence goes
   INTO the findings list as `unverified: <rubric line>`. Use NOT CHECKABLE only for rubric
   lines outside this lens's scope.
4. Coverage first, filtering never. Report EVERY defect you find, at any severity and any
   confidence (h, m, l, exactly as the template shows). Do not self-filter to important
   findings; ranking happens downstream. It is better to surface a finding that gets
   dismissed than to silently drop a real defect.
5. For each finding report: location (file:line, frame, or element), the rubric line it
   violates, and a concrete failure description.
6. An empty findings list is a strong claim. It means you actively checked every rubric line
   in your lens and found nothing.

Output format (your final message is parsed by the caller; return data, not conversation).
One filled example finding line follows the template; imitate its shape exactly:

```
LENS: <the lens you judged>
FINDINGS:
1. <location> | <rubric line violated> | <what is wrong, concretely> | confidence: <h/m/l>
2. ...
CHECKED: <numbered rubric lines you verified, and how (which file read, which command run)>
NOT CHECKABLE: <rubric lines outside this lens's scope, if any>
```

Example finding line:
`3. src/pricing/page.tsx:88 | one primary action per view | two competing primary buttons in the hero, equal weight | confidence: h`

When there are no findings, put the single word NONE in place of the numbered lines.

MIT license, from apoorvjain25/frontier at commit 0b39eee3ec9e.

Security

Scanned Oct 21, 2026 at commit 0b39eee3ec9e, with Cisco's open-source skill-scanner.

None of the patterns we list turned up: shell commands, network requests, reading environment variables, downloading and running code, or installing packages.

A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan

Alternatives

Other makers' add-ons that do the same job, next to this one.

NameScoreStarsContextUpdated
This oneverifier apoorvjain25/frontier · Subagent 55★ 79≈99 in chat4mo ago
plan-verifier Nanako0129/pilotfish · Subagent Both about verifier and fresh 63★ 708≈47 in chat26d ago
short-verifier modoojunko/awesome-novel-agent · Subagent Both about verifier 60★ 830≈15 in chat1mo ago
fix-verifier 0xSteph/pentest-ai-agents · Subagent Both about verifier 64★ 2.4k≈23 in chat29d ago
release-verifier AgriciDaniel/claude-ads · Subagent Both about verifier and fresh 76★ 10k≈49 in chat19d ago
harness-verifier greatSumini/cc-system · Subagent Both about verifier and producing 59★ 438≈78 in chat5mo ago