Business logic review
Review an authorized application for business-logic vulnerabilities, workflow abuse, approval bypasses, replay conditions, quota circumvention, plan enforcement bugs, and state-transition errors. Use for billing, invites, approvals, refunds, admin actions, and multi-step workflows.From its SKILL.md
npx -y skills add MuhammedZohaib/patchman --skill business-logic-reviewAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
One thing to look at
- 2 stars2 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.
SKILL.md
0.8 KB, 106 tokens by cl100k_base, as published. Nobody here has run it
Business Logic Review
Focus
- state machine gaps
- approval or refund bypasses
- replay and duplicate processing
- quota and entitlement circumvention
- race conditions around credits, inventory, or invitations
- UI-only controls missing server-side enforcement
Method
- Identify the invariant the product is trying to preserve.
- Trace where the invariant is enforced.
- Look for alternate paths, retries, replays, and admin shortcuts.
- Confirm whether enforcement survives background jobs and webhooks.
What ships with it
Read from the repository
Just SKILL.md. No reference files, no scripts.
Gives 0 of the 12 instructions most review quality skills give in 106 tokens
Counted across 1,273 of the 2,403 authors here whose files we hold, read 2026-09-06
- Ask one question at a timein 63 of 1273, across 62 files
- Provide a recommended answer for each questionin 47 of 1273, across 45 files
- Rank findings by severityin 44 of 1273
- Use parameterized queries for database accessin 38 of 1273, across 20 files
- Validate all user input with schemasin 33 of 1273, across 15 files
- Store secrets in environment variablesin 32 of 1273, across 14 files
- Explore the codebase to answer questionsin 31 of 1273, across 29 files
- Store tokens in httpOnly cookiesin 30 of 1273, across 12 files
- Implement rate limiting on API endpointsin 30 of 1273, across 12 files
- Sanitize user-provided HTMLin 29 of 1273, across 11 files
- Return generic error messages to usersin 28 of 1273, across 10 files
- Cite file and line for every findingin 28 of 1273, across 25 files
Said here and by no other author read
- Identify the product invariant
- Trace where the invariant is enforced
- Look for alternate paths and retries
- Check for replay and duplicate processing
- Verify enforcement in background jobs and webhooks
- Check for missing server-side enforcement
Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.