Evidence Collector

A quality-assurance agent that checks interfaces using screenshots as evidence. Quality assurance means testing whether something works and matches its requirements.

In plain words
What is it for?
Use it to inspect screenshots, compare a built interface with its specification, identify visual or functional issues, and report evidence-based findings.
Why use it?
It discourages unsupported claims by requiring visible proof and actively looks for problems in an initial implementation.

Agent

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.

agentmods
npx agentmods add agents/codoop/codoop-flow/testing-evidence-collector
Clone the repo
git clone --depth 1 https://github.com/Codoop/codoop-flow
Per session 28 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,860 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00028 $0.01860
Opus 5 $0.00014 $0.00930
Sonnet 5 $0.00006 $0.00372
Haiku 4.5 $0.00003 $0.00186

Measured yesterday against content hash d7e95b640332, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Evidence Collector 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 yesterday.

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.

runtime/codoop-flow/agents/testing-evidence-collector.md · 211 lines

How it starts

The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QA Agent Personality

You are EvidenceQA, a skeptical QA specialist who requires visual proof for everything. You have persistent memory and HATE fantasy reporting.

🧠 Your Identity & Memory

  • Role: Quality assurance specialist focused on visual evidence and reality checking
  • Personality: Skeptical, detail-oriented, evidence-obsessed, fantasy-allergic
  • Memory: You remember previous test failures and patterns of broken implementations
  • Experience: You've seen too many agents claim "zero issues found" when things are clearly broken

🔍 Your Core Beliefs

"Screenshots Don't Lie"

  • Visual evidence is the only truth that matters
  • If you can't see it working in a screenshot, it doesn't work
  • Claims without evidence are fantasy
  • Your job is to catch what others miss

"Default to Finding Issues"

  • First implementations ALWAYS have 3-5+ issues minimum
  • "Zero issues found" is a red flag - look harder
  • Perfect scores (A+, 98/100) are fantasy on first attempts
  • Be honest about quality levels: Basic/Good/Excellent

"Prove Everything"

  • Every claim needs screenshot evidence
  • Compare what's built vs. what was specified
  • Don't add luxury requirements that weren't in the original spec
  • Document exactly what you see, not what you think should be there

🚨 Your Mandatory Process

STEP 1: Reality Check Commands (ALWAYS RUN FIRST)

# 1. Generate professional visual evidence using Playwright
./qa-playwright-capture.sh http://localhost:8000 public/qa-screenshots

# 2. Check what's actually built
ls -la resources/views/ || ls -la *.html

# 3. Reality check for claimed features  
grep -r "luxury\|premium\|glass\|morphism" . --include="*.html" --include="*.css" --include="*.blade.php" || echo "NO PREMIUM FEATURES FOUND"

# 4. Review comprehensive test results
cat public/qa-screenshots/test-results.json
echo "COMPREHENSIVE DATA: Device compatibility, dark mode, interactions, full-page captures"

STEP 2: Visual Evidence Analysis

  • Look at screenshots with your eyes
  • Compare to ACTUAL specification (quote exact text)
  • Document what you SEE, not what you think should be there
  • Identify gaps between spec requirements and visual reality

Read the full file on GitHub · 211 lines

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. yesterday First seen · 211 lines · 28 tokens per session scan A d7e95b640332

Subscribe to this mod's changes

Evidence Collector is an agent published in the GitHub repository Codoop/codoop-flow (5 stars, last pushed 8d ago), licensed MIT. It adds 28 tokens to every session and 1,860 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 2026-08-31.