proof-strategy

proof-strategy is a skill for Claude Code from tonone-ai/tonone. It costs 53 tokens per session (1,429 once invoked), scanned A, original, MIT.

A planning workflow for deciding how a project or feature should be tested. It maps risks, chooses suitable test types, sets coverage goals, and considers how tests should run in continuous integration, the automated system that checks code changes.

In plain words
What is it for?
Use it to create a test strategy, decide between unit, integration, and end-to-end tests, and plan coverage for areas such as authentication, payments, and data changes.
Why use it?
It prevents teams from testing everything in the same way or overlooking high-impact failures. It turns a feature description and the existing codebase into a practical testing plan.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the TodoWrite tool; mentions Claude Code.

Part of the engineering-team plugin — 80 skills shipped together

Good fit Use it to create a test strategy, decide between unit, integration, and end-to-end tests, and plan coverage for areas such as authentication, payments, and data changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tonone-ai/tonone/proof-strategy
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 tonone-ai/tonone --skill proof-strategy
Clone the repo
git clone --depth 1 https://github.com/tonone-ai/tonone

Made for: Claude Code.

Or install engineering-team, the plugin that ships this one along with the rest of its 80 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.

agentmods badge for proof-strategy

README.md
[![agentmods](https://agentmods.dev/badge/skills/tonone-ai/tonone/proof-strategy/github.svg)](https://agentmods.dev/skills/tonone-ai/tonone/proof-strategy)
Your own site
<a href="https://agentmods.dev/skills/tonone-ai/tonone/proof-strategy"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/proof-strategy/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.

agentmods 80×15 button for proof-strategy

Your own site · 80×15
<a href="https://agentmods.dev/skills/tonone-ai/tonone/proof-strategy"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/proof-strategy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,429 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00053 $0.01429
Opus 5.5 $0.00021 $0.00572
Sonnet 5.5 $0.00011 $0.00286
Haiku 4.5 $0.00005 $0.00143

Measured 17d ago against content hash 2f63685fd98c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

proof-strategy 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 17d 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.

bundle/engineering-team/skills/proof-strategy/SKILL.md · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Test Strategy

You are Proof — the QA and testing engineer on the Engineering Team.

You produce a test strategy document. You make the calls — you don't present options for the human to decide.

Follow the output format defined in docs/output-kit.md — 40-line CLI max, box-drawing skeleton, unified severity indicators, compressed prose.

Steps

Step 0: Detect Environment

Scan the codebase before asking anything:

  • Test frameworks: jest.config.*, vitest.config.*, pytest.ini, go test files, RSpec, JUnit
  • E2E tools: playwright.config.*, cypress.config.*
  • CI test steps: .github/workflows/, test scripts in package.json
  • Existing test dirs: __tests__/, tests/, test/, *_test.go, spec/
  • Coverage config: .nycrc, coverage in jest.config, .coveragerc
  • Count existing tests — rough order of magnitude (0, dozens, hundreds?)

If no codebase is available, ask for a feature/system description and proceed from there.

Step 1: Risk Map

Most important step. Map every significant area of the system by likelihood of breaking × impact if broken:

Area Likelihood Impact Risk Level Decision
Auth / access control — — — —
Payment / billing — — — —
Primary data mutations — — — —
External integrations — — — —
Background jobs — — — —
UI / rendering — — — —
Admin / internal tools — — — —

Fill in based on actual codebase scan or feature description. Every row needs a Decision: what test type, what depth, or explicitly "skip — risk too low."

Step 2: Test Type Assignment

For each high/medium risk area, assign the right test layer:

Read the full file on GitHub · 153 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. 17d ago First seen · 153 lines · 53 tokens per session scan A 2f63685fd98c

Subscribe to this mod's changes

proof-strategy is a skill published in the GitHub repository tonone-ai/tonone (76 stars, last pushed 9d ago), licensed MIT. It adds 53 tokens to every session and 1,429 once invoked, about $0.0002 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 2026-09-27.

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