Guidance for property-based testing across languages and smart contracts.
Automate repetitive workflows and reduce manual effort
Example: Generate reports, summarize documents, draft communications
Save 3-5 hours per week on routine tasks
Learn new skills, understand complex topics, get expert guidance
Example: Explain concepts, provide examples, suggest learning resources
Accelerate learning and skill development by 2x
Enhance output quality through reviews, suggestions, and refinements
Example: Review drafts, suggest improvements, catch errors
Improve work quality by 30-40% with less effort
Time estimate: 15-45 minutes depending on use case complexity
Prerequisites
Submit your Claude Code skill and start earning
epx add trailofbits/skills --skill property-based-testingCompatible with
Supported agents
Detects high-value PBT patterns automatically: serialization pairs, parsers, validators, normalization, data structures, algorithms, and smart contract state invariants
Provides a property catalog with 10 core patterns (roundtrip, idempotence, invariant, commutativity, associativity, identity, inverse, oracle, easy-to-verify, no exception) ranked by strength
Includes decision tree routing to language-specific r
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionproperty-based-testingExecute the skills CLI command in your project's root directory to begin installation:
epx add trailofbits/skills --skill property-based-testingFetches property-based-testing from trailofbits/skills and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
.cursor/skills/property-based-testing
Restart Cursor to activate property-based-testing. Access via /property-based-testingin your agent's command palette.
Learn more:View source on GitHubSkills CLI docsAbout CursorWhat are agent skills?
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use when skill capabilities match your task, clear ROI on time saved, and you can validate outputs. Best for repetitive tasks, learning, and quality improvement.
✗ Avoid when
Avoid when task requires deep expertise you can't validate, involves sensitive decisions, or when learning process is more valuable than speed of completion.
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property-based-testing reduced setup friction for our internal harness; good balance of opinion and flexibility.
We added property-based-testing from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
property-based-testing is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
I recommend property-based-testing for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
Registry listing for property-based-testing matched our evaluation — installs cleanly and behaves as described in the markdown.
Keeps context tight: property-based-testing is the kind of skill you can hand to a new teammate without a long onboarding doc.
Useful defaults in property-based-testing — fewer surprises than typical one-off scripts, and it plays nicely with `npx skills` flows.
property-based-testing reduced setup friction for our internal harness; good balance of opinion and flexibility.
We added property-based-testing from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
property-based-testing has been reliable in day-to-day use. Documentation quality is above average for community skills.
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