Evaluate how well existing tests catch code changes, then combine the results with function relationships. Get a report separating harmless findings, missing unit tests, and targets for fuzzing, which tests many generated inputs.
中文简介正在准备中。当前显示英语简介。
- Triage code changes that existing tests failed to catch
- Prioritize missing unit tests
- Find functions suited to fuzzing
trailofbits/skills☆ 76352026年10月16日 更新
Find other occurrences of a known bug across a codebase by tracing its root cause. Gradually broaden search patterns, assess matching candidates, assign severity, and document findings with rules to help prevent recurrence.
中文简介正在准备中。当前显示英语简介。
- Finding similar issues after discovering a vulnerability
- Building CodeQL or Semgrep queries from a known bug
- Checking whether similar code shares the same root cause
trailofbits/skills☆ 76352026年10月16日 更新
Generates cryptographic test vectors, inputs with expected outcomes, by deliberately changing implementation code and finding changes existing tests miss. Verifies new vectors across independent implementations and compares detection rates before and after adding them.
中文简介正在准备中。当前显示英语简介。
- Finding coverage gaps in cryptographic test vectors
- Creating invalid inputs that exercise validation checks
- Building test vectors shared across independent implementations
trailofbits/skills☆ 76352026年10月16日 更新
Sets up AFL++ to test C/C++ programs with varied generated inputs, a technique called fuzzing. Covers running tests across CPU cores, monitoring progress, reducing input collections, and reproducing crashes for investigation.
中文简介正在准备中。当前显示英语简介。
- Running C/C++ fuzzing across multiple CPU cores
- Exploring further after libFuzzer progress stalls
- Monitoring fuzzing progress and stability
trailofbits/skills☆ 76352026年10月16日 更新
Writes and reviews Lean 4 proofs, machine-checked arguments for mathematics or specifications. Follows Mathlib conventions to organize definitions and lemmas, fill proof gaps, refactor lengthy proofs, and establish automated checks for unproved claims and style.
中文简介正在准备中。当前显示英语简介。
- Formalizing mathematics or specifications in Lean 4
- Filling sorry placeholders in proofs
- Splitting long proofs into reusable lemmas
trailofbits/skills☆ 76352026年10月16日 更新
Guides fuzz testing for Ruby libraries and gems with Ruzzy, using varied inputs to find failures. Covers pure Ruby and C extensions, including test harnesses, memory error detection, environment setup, and crash reproduction.
中文简介正在准备中。当前显示英语简介。
- Adding fuzz tests to a Ruby library
- Testing memory safety in a gem's C extension
- Preparing tracer and harness scripts for pure Ruby
trailofbits/skills☆ 76352026年10月16日 更新
Uses a known or suspected vulnerability to find related code through Trailmark's graph of calls, types, and implementations. Produces ranked review targets with reasons and limitations for follow-up security analysis.
中文简介正在准备中。当前显示英语简介。
- Finding variants of a known vulnerability
- Prioritizing code that shares sensitive operations
- Preparing candidates for Semgrep or CodeQL review
trailofbits/skills☆ 76352026年10月16日 更新
Set up Atheris to test Python code and C extensions with automatically varied inputs. It guides test harness creation, coverage tracking to explore more code, and AddressSanitizer setup for finding memory errors.
中文简介正在准备中。当前显示英语简介。
- Fuzzing a Python package or parser
- Investigating memory corruption in Python C extensions
- Turning raw bytes into typed test arguments
trailofbits/skills☆ 76352026年10月16日 更新
Test cryptographic code for timing side channels, where execution time can reveal secrets. Use dudect to detect statistical differences and Timecop with Valgrind to trace secret-dependent operations, then interpret results and retest changes.
中文简介正在准备中。当前显示英语简介。
- Checking cryptographic functions for secret-dependent timing
- Measuring timing differences in compiled binaries
- Tracing the cause of a suspected timing leak
trailofbits/skills☆ 76352026年10月16日 更新
Set up OSS-Fuzz for an open-source project and test it locally. Prepare configuration and build files, run fuzz tests that probe code with varied inputs, reproduce reported crashes, and inspect which code the tests reach.
中文简介正在准备中。当前显示英语简介。
- Preparing an open-source project for OSS-Fuzz enrollment
- Testing an OSS-Fuzz build locally before submission
- Reproducing crashes from OSS-Fuzz reports
trailofbits/skills☆ 76352026年10月16日 更新
Scan Android APK files for Firebase configuration and access-control weaknesses in databases, storage, authentication, and cloud functions. Produce text and JSON reports with evidence, severity ratings, and suggested fixes for authorized security assessments.
中文简介正在准备中。当前显示英语简介。
- Auditing Firebase security in Android apps
- Checking unauthenticated database access
- Testing storage listing and write permissions
trailofbits/skills☆ 76352026年10月16日 更新
Organize open GitHub issues and pull requests using the gh CLI, GitHub's command-line tool. Identifies resolved issues and pending fixes, estimates priorities and change sizes locally, and proposes closures, links, reviews, or merges for approval.
中文简介正在准备中。当前显示英语简介。
- Clean up resolved issues left open
- Link issues to pull requests with pending fixes
- Estimate priorities and change sizes for outstanding work
trailofbits/skills☆ 76352026年10月16日 更新
Validate security patches by comparing vulnerable and patched code against exploit tests, related attack variants, and normal behavior. Produce reproducible logs showing remaining flaws, regressions, newly introduced security failures, and gaps that still need testing.
中文简介正在准备中。当前显示英语简介。
- Validate an AI-generated security patch before review
- Check related attack variants for incomplete fixes
- Check whether a fix breaks normal behavior
trailofbits/skills☆ 76352026年10月16日 更新
Writes, reviews, and debugs property-based tests, which generate inputs to check general rules. Helps test conversions, parsers, normalization, and state invariants, assess whether existing assertions are meaningful, and distinguish faulty rules from implementation bugs.
中文简介正在准备中。当前显示英语简介。
- Testing encode/decode round trips across generated inputs
- Checking normalization and sorting properties
- Reviewing whether existing property tests assert meaningful rules
trailofbits/skills☆ 76352026年10月16日 更新
Create an interactive HTML guide to a branch’s code changes, with complete file diffs arranged in a logical reading order, explanations of design choices, and review findings labeled by severity.
中文简介正在准备中。当前显示英语简介。
- Understanding a branch’s changes in a logical order
- Reviewing diffs alongside design explanations
- Checking findings labeled by severity
trailofbits/skills☆ 76352026年10月16日 更新
Review Cosmos SDK modules and CosmWasm contracts for vulnerabilities that could halt a chain, cause fund loss, or produce inconsistent state. Findings are checked against consensus execution paths and saved as individual Markdown reports with severity and fixes.
中文简介正在准备中。当前显示英语简介。
- Auditing custom Cosmos SDK modules
- Reviewing IBC integrations
- Assessing chain security before launch
trailofbits/skills☆ 76352026年10月16日 更新
Creates custom Semgrep rules to detect vulnerabilities, bug patterns, or coding standard violations. Builds tests for unsafe and safe examples, then validates and refines each rule to check for false alarms and missed cases.
中文简介正在准备中。当前显示英语简介。
- Creating detection rules for recurring bug patterns
- Tracking untrusted input reaching dangerous operations
- Enforcing coding standards with custom rules
trailofbits/skills☆ 76352026年10月16日 更新
Port an existing Semgrep rule to specified programming languages, producing separate rule and test files for each. The skill checks applicability, adapts detection patterns to each language, and reports validation results.
中文简介正在准备中。当前显示英语简介。
- Porting an existing rule to Go or Java
- Checking whether a detection pattern applies to another language
- Creating language-specific detection and safe-code tests
trailofbits/skills☆ 76352026年10月16日 更新
Reviews APIs and configuration designs for choices that make security mistakes easy. Checks unsafe defaults, confusing parameter types, and hidden failures, then validates whether misuse creates a real vulnerability and assigns severity.
中文简介正在准备中。当前显示英语简介。
- Reviewing API designs for security mistakes
- Checking defaults and dangerous configuration combinations
- Assessing cryptographic API usability
trailofbits/skills☆ 76352026年10月16日 更新
Compare implementation code with a specification, whitepaper, or design document. It checks individual requirements, independently challenges reported mismatches, and writes evidence-based reports covering missing or partial implementation, contradictions, undocumented behavior, and requirements that cannot be judged.
中文简介正在准备中。当前显示英语简介。
- Check an implementation against a specification
- Compare protocol code with a whitepaper
- Verify guarantees stated in a README
trailofbits/skills☆ 76352026年10月16日 更新
Assess test strength by introducing deliberate code changes with mewt or muton. Configure test runs, examine changes that tests miss, distinguish harmless equivalents from testing gaps, and investigate potential bugs in the affected code.
中文简介正在准备中。当前显示英语简介。
- Set up and scope a mutation testing run
- Investigate code changes that tests fail to detect
- Distinguish equivalent changes from testing gaps
trailofbits/skills☆ 76352026年10月16日 更新
Reviews Algorand smart contracts written in TEAL or PyTeal for 11 vulnerability patterns. Produces a complete coverage table and findings with code references, severity ratings, and suggested fixes, with optional automated checks using Tealer.
中文简介正在准备中。当前显示英语简介。
- Security checks before an Algorand contract audit
- Reviewing TEAL or PyTeal transaction validation
- Verifying fixes for reported vulnerabilities
trailofbits/skills☆ 76352026年10月16日 更新
Review Cairo smart contracts on StarkNet for six vulnerability patterns involving arithmetic, cross-layer messages, addresses, and signature reuse. Receive a coverage table with evidence for every pattern, plus severity ratings and fixes for identified issues.
中文简介正在准备中。当前显示英语简介。
- Review StarkNet contracts before launch
- Audit L1-L2 bridge message handling
- Check protection against signature reuse
trailofbits/skills☆ 76352026年10月16日 更新
Maps externally callable smart contract functions that change stored data, then groups them by access restrictions. Produces a structured audit report showing public functions, privileged operations, and access checks that need further review.
中文简介正在准备中。当前显示英语简介。
- Mapping entry points before a smart contract audit
- Listing administrator and role-restricted operations
- Reviewing caller restrictions on callbacks
trailofbits/skills☆ 76352026年10月16日 更新