What is phoenix-verification-matrix?

A verification matrix that links every required behaviour, including security requirements, to a way of proving it works. Its proof methods include automated tests, API agreement tests, code scanning, infrastructure checks, performance tests, and human review.

Use it to plan evidence for product and security requirements before implementation or release, including unit, integration, contract, static-analysis, infrastructure, load, and manual checks.

It prevents requirements from being accepted without evidence and makes gaps in testing visible. Security requirements are assigned both code scanning and a unit test as a minimum.

phoenix-verification-matrix — Skill by Security-Phoenix-demo

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.

Any agent

npx skills add Security-Phoenix-demo/security-skills-claude-code --skill phoenix-verification-matrix

Clone the repo

git clone --depth 1 https://github.com/Security-Phoenix-demo/security-skills-claude-code

Made for: Claude Code.

Or install phoenix-prd-pipeline, the plugin that ships this one along with the rest of its 13 skills.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/phoenix-verification-matrix/github.svg)](https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/phoenix-verification-matrix)

Your own site

<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/phoenix-verification-matrix"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/phoenix-verification-matrix/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/security-phoenix-demo/security-skills-claude-code/phoenix-verification-matrix"><img src="https://agentmods.dev/badge/skills/security-phoenix-demo/security-skills-claude-code/phoenix-verification-matrix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 176 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,027 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00176	$0.01027
Opus 5.5	$0.00070	$0.00411
Sonnet 5.5	$0.00035	$0.00205
Haiku 4.5	$0.00018	$0.00103

Measured 1mo ago against content hash 28ae5c6857bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

phoenix-verification-matrix 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.

plugins/phoenix-prd-pipeline/skills/phoenix-verification-matrix/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Phoenix Security — Verification Matrix (Role 08)

Token Budget: ≤1000 tokens Depends On: Roles 04, 06, 07 — NORMATIVE_REQUIREMENTS, SECURITY_REQUIREMENTS, CONTRACTS Feeds Into: Role 09 — Batch Planner Output: 08-verification-matrix.md

Phoenix Proof Types

Proof Type	Description	Naming Convention
`unit-test`	Automated unit test	`test_<module>_<behaviour>.py`
`integration-test`	Multi-component test	`test_<feature>_integration.py`
`contract-test`	API / Pact test	`pact_<api-id>_<scenario>.json`
`static-analysis`	Linter / SAST	Bandit, CodeQL, Semgrep rule name
`infra-check`	IaC / config validation	Terraform plan / AWS policy check
`manual-review`	Human checklist	Named checklist item
`pen-test`	Penetration test	For new trust boundary crossings
`load-test`	Performance validation	Locust / k6 scenario name

Proof Priority (prefer automated)

unit-test → integration-test → contract-test → static-analysis → infra-check → load-test → manual-review

Mandatory Proof Assignments

R-SEC-* → static-analysis + unit-test minimum
PSC-03 (multi-tenancy) → integration-test required
PSC-08 (AI agent) → manual-review + unit-test
API-NNN → contract-test as primary
Auth / tenant isolation / input validation → negative tests required

Core Rules

Every MUST/MUST NOT must have ≥1 proof path.
If proof is impossible → downgrade MUST → SHOULD, or mark OPEN QUESTION with rationale.
Negative tests for all auth, tenant isolation, and input validation requirements.
unverified_musts > 0 is a Final Gate blocker unless downgraded with rationale.

Output Schema

---
meta:
  role: 08-verification-matrix
  session_id: session-[YYYYMMDD-HHMMSS]
  token_count: [actual]
  total_musts: [count]
  automated_proofs: [count]
  manual_proofs: [count]
  unverified_musts: [count]
  status: complete
  next_role: 09-batch-planner
---

### VERIFICATION_MATRIX

| Requirement_ID | Statement (short) | Level | Proof_Type | Proof_Artifact | Negative_Test | Notes |
|---|---|---|---|---|---|---|
| R-FUNC-001 | ... | MUST | unit-test | test_feature_behaviour.py | test_feature_unauthorised.py | |
| R-SEC-001 | Tenant data isolated | MUST | integration-test + static | test_tenant_isolation.py + semgrep_tenant | test_cross_tenant_leak.py | PSC-03 |
| R-SEC-002 | LLM input sanitised | MUST | unit-test + manual-review | test_prompt_sanitise.py + ai-review-checklist | test_prompt_injection.py | PSC-08 |
| API-001 | GET /... returns envelope | MUST | contract-test | pact_api001_consumer.json | pact_api001_invalid_token.json | |

#### UNVERIFIED_MUSTS (if any)
- R-XXX-NNN: <reason> → recommended: downgrade | ask | manual

Read the full file on GitHub · 94 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.

1mo ago First seen · 94 lines · 176 tokens per session scan A 28ae5c6857bc

Subscribe to this mod's changes

phoenix-verification-matrix is a skill published in the GitHub repository Security-Phoenix-demo/security-skills-claude-code (81 stars, last pushed 5d ago), licensed MIT. It adds 176 tokens to every session and 1,027 once invoked, about $0.0007 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 2026-09-11.

Planning Testing Unit testing

phoenix-verification-matrix next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
phoenix-verification-matrixSecurity-Phoenix-demo/security-skills-claude-code	Skill	81	5d ago	MIT	A	176	Claude Code
test-masterJeffallan/claude-skills	Skill	12k	7d ago	MIT	A	104	Claude Code
migrate-xunit-to-xunit-v3dotnet/skills	Skill	5.8k	yesterday	MIT	A	149	Claude Code
go-testingGentleman-Programming/gentle-ai	Skill	8.4k	yesterday	MIT	A	26	Claude Code, Codex
principle-test-behavior-not-implementationmichael-denyer/pstack-claude	Skill	4.1k	yesterday	MIT	A	50	Claude Code
dart-testdartsim/dart	Skill	1.2k	yesterday	BSD-2-Clause	A	18	Claude Code, Codex
test-generatorrshankras/claude-code-apple-skills	Skill	864	2d ago	MIT	A	33	Claude Code