Debugging
Find and fix bugs, error analysis
receiving-code-review
by srbhr
Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation
next-devtools-guide
by FradSer
This skill should be used when working with Next.js projects that have the next-devtools MCP server configured, when encountering MCP connection issues, or when needing guidance on which MCP tool to use for specific tasks such as error detection, route inspection, Server Action tracing, or Cache Components migration.
principle-minimize-reader-load
by cursor
"Apply when reviewing or shaping code that's hard to trace. Count layers between question and answer, and hidden state in the reader's head; collapse one-caller wrappers and shrink mutable scope."
principle-encode-lessons-in-structure
by cursor
"Apply when you catch yourself writing the same instruction a second time, or notice a recurring correction. Encode the rule as a lint, metadata flag, runtime check, or script instead of more text."
tdd
by cursor
"Use only when the user explicitly asks for TDD, a failing test, or a regression test, OR when the bug has an obvious cheap local test target. Skip when the test path is unclear, expensive, integration-heavy, or not requested."
principle-fix-root-causes
by cursor
"Apply when debugging. Trace each symptom to its root cause and fix it there; reproduce first, ask why until you reach it, resist nil-check guards that silence crashes."
principle-never-block-on-the-human
by cursor
"Apply when tempted to ask 'should I do X?' on reversible work. Proceed, present the result, let the human course-correct after the fact; reserve confirmation for irreversible actions."
recall
by cursor
"Reconstruct your recent working context from your own chat history, live state, and the shared record (user reports, prior fixes, incidents), then hand back a tight current-state brief. Use for 'recall my work on X', 'catch me up', 'what have I been working on', 'where did I leave off', before starting or resuming work."
ascii-text-art-library
by partme-ai
Generate a reusable ASCII-only text template library (titles, dividers, notice boxes, slogans/CTA), with naming conventions and selection rules for consistent CLI/log/README output.
rspack-tracing
by rstackjs
Comprehensive guide and toolkit for diagnosing Rspack build issues. Quickly identify where crashes/errors occur, or perform detailed performance profiling to resolve bottlenecks. Use when the user encounters build failures, slow builds, or wants to optimize Rspack performance.
migrate-to-rstest
by rstackjs
Migrate Jest or Vitest test suites and configs to Rstest. Use when asked to move from Jest/Vitest to Rstest, replace framework APIs with @rstest/core, translate test config to rstest.config.ts, or update test scripts and setup files for Rstest equivalents.
rsbuild-v2-upgrade
by rstackjs
Use when upgrading a Rsbuild 1.x project to v2, including dependency and configuration updates.
rspack-v2-upgrade
by rstackjs
Use when upgrading a Rspack 1.x project to v2, including dependency and configuration updates.
git-commit-specification
by TencentBlueKing
Git 提交规范，涵盖 commit message 格式（feat/fix/refactor）、Issue 关联、分支命名、PR 提交准备、rebase 使用。当用户提交代码、编写 commit message、创建分支或准备 PR 时使用。
dokploy-traefik-traffic-split
by Innei
Use when you need to canary-deploy two HTTP backends on the same Dokploy-managed domain with a percentage split (e.g. migrating an SPA from one framework to another). Covers the critical SPA-asset trap that breaks naive sticky-cookie splits, a path-aware Traefik config that solves it, and a four-phase workflow (backup → dry-run on a canary host → roll to prod → quick rollback).
holding-analytical-judgment
by Innei
Use when delivering analysis, assessment, or diagnosis to the person whose work/behavior/decisions are being analyzed, and they push back emotionally, contradict conclusions, or express discomfort — prevents flipping the conclusion to match their mood while staying open to new factual evidence. Covers code review, architecture review, performance diagnosis, root-cause analysis, decision post-mortems, behavior/relationship analysis — any task where the reader is the subject.
gdb
by mohitmishra786
GDB debugger skill for C/C++ programs. Use when starting a GDB session, setting breakpoints, stepping through code, inspecting variables, debugging crashes, using reverse debugging (record/replay), remote debugging with gdbserver, or loading core dumps. Activates on queries about GDB commands, segfaults, hangs, watchpoints, conditional breakpoints, pretty-printers, Python GDB scripting, or multi-threaded debugging.
gcc
by mohitmishra786
GCC compiler skill for C/C++ projects. Use when selecting optimization levels, warning flags, debug builds, LTO, sanitizer instrumentation, or diagnosing compilation errors with GCC. Covers flag selection for debug vs release, ABI concerns, preprocessor macros, profile-guided optimization, and integration with build systems. Activates on queries about gcc flags, compilation errors, performance tuning, warning suppression, or cross-standard compilation.
strace-ltrace
by mohitmishra786
strace and ltrace skill for system call and library call tracing. Use when a binary behaves incorrectly without crashing, diagnosing file-not-found errors, permission failures, network issues, or unexpected library calls by tracing syscalls and library function calls. Activates on queries about strace, ltrace, syscall tracing, library interception, ENOENT, EPERM, strace -e, or diagnosing binary behaviour without a debugger.
Browser
by danielmiessler
Debug-first browser automation with always-on visibility. Console logs, network requests, and errors captured by default. USE WHEN browser, screenshot, debug web, verify UI, troubleshoot frontend.
reduce-ssa-repro
by noir-lang
Minimize an SSA file that triggers a bug in the noir-ssa pipeline, producing the smallest possible reproduction case. Use after bisecting to identify which SSA passes cause the issue.
noir-frontend-tests
by noir-lang
Guide for writing noirc_frontend unit tests. Use when adding, writing, or reviewing frontend tests — regression tests, reproduction tests, error-checking tests, or should_panic tests in the compiler frontend.
debug-fuzzer-failure
by noir-lang
End-to-end workflow for debugging SSA fuzzer failures from CI. Extracts a reproduction case from GitHub Actions logs, then bisects SSA passes to identify the bug. Use when a pass_vs_prev or similar fuzzer test fails in CI.
better-result-adopt
by dmmulroy
Migrate codebase from try/catch or Promise-based error handling to better-result. Use when adopting Result types, converting thrown exceptions to typed errors, or refactoring existing error handling to railway-oriented programming.