Code Review Checklist
shareAI-lab/learn-claude-code
Reviews code against a five-part checklist covering security, correctness, performance, maintainability and testing, and reports findings in a fixed format.
strace and ltrace skill for system call and library call tracing.
$ npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mohitmishra786/low-level-dev-skills strace-ltrace --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/profilers/strace-ltrace .claude/skills/strace-ltrace && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "strace-ltrace" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/profilers/strace-ltrace into .claude/skills/strace-ltrace/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strace-ltrace", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/profilers/strace-ltraceType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mohitmishra786/low-level-dev-skills strace-ltrace --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/profilers/strace-ltrace .agents/skills/strace-ltrace && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "strace-ltrace" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/profilers/strace-ltrace into .agents/skills/strace-ltrace/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strace-ltrace", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mohitmishra786/low-level-dev-skills strace-ltrace --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/profilers/strace-ltrace .cursor/skills/strace-ltrace && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "strace-ltrace" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/profilers/strace-ltrace into .cursor/skills/strace-ltrace/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strace-ltrace", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mohitmishra786/low-level-dev-skills.git --path skills/profilers/strace-ltrace--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mohitmishra786/low-level-dev-skills strace-ltrace --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/profilers/strace-ltrace .gemini/skills/strace-ltrace && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "strace-ltrace" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/profilers/strace-ltrace into .gemini/skills/strace-ltrace/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strace-ltrace", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mohitmishra786/low-level-dev-skills strace-ltraceInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/profilers/strace-ltrace .github/skills/strace-ltrace && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "strace-ltrace" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/profilers/strace-ltrace into .github/skills/strace-ltrace/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strace-ltrace", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mohitmishra786/low-level-dev-skills strace-ltrace --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/profilers/strace-ltrace .opencode/skills/strace-ltrace && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "strace-ltrace" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/profilers/strace-ltrace into .opencode/skills/strace-ltrace/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "strace-ltrace", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
strace-ltracestrace and ltrace skill for system call and library call tracing.
Strace Ltrace is an agent skill from mohitmishra786/low-level-dev-skills. 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.
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/strace-patterns.md`).
It sits in Development, covering Performance optimization. The repository describes itself as: A curated suite of AI agent skills for systems and low-level programming with C/C++, Rust, and Zig toolchains, covering compilers, debuggers, profilers, build systems…. The licence is MIT.
7 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit bdc5847. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Strace Ltrace loads about 1.6k tokens when it runs, and up to ~2.6k if it reads all its reference files. Until then it costs about 110 tokens; SKILL.md has 351 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from mohitmishra786/low-level-dev-skills at commit bdc5847, republished under its MIT licence (© mohitmishra786). 351 words, ~1,561 tokens.
.claude/skills/strace-ltrace/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.Guide agents through tracing system calls with strace and library calls with ltrace — the most effective tools for diagnosing incorrect binary behaviour without a crash or debugger.
# Trace all syscalls of a command
strace ./myapp arg1 arg2
# Attach to running process
strace -p 12345
# Trace child processes too (-f = follow fork)
strace -f ./myapp
# Save to file (raw output — not stdout)
strace ./myapp 2> trace.txt
# Most useful: timestamps + summary
strace -t -f ./myapp 2>&1 | head -100# Trace file operations only
strace -e trace=file ./myapp
# Trace network syscalls
strace -e trace=network ./myapp
# Trace specific syscalls
strace -e trace=open,openat,read,write ./myapp
# Trace process management
strace -e trace=process ./myapp
# Trace memory operations
strace -e trace=memory ./myapp
# Trace signals
strace -e trace=signal ./myapp
# Multiple categories
strace -e trace=file,network ./myapp| Category | Syscalls included |
|---|---|
file | open, openat, stat, access, unlink, rename, ... |
network | socket, connect, bind, accept, send, recv, ... |
process | fork, exec, wait, clone, exit, ... |
memory | mmap, munmap, mprotect, brk, ... |
signal | kill, sigaction, sigprocmask, ... |
ipc | pipe, socket pair, shmget, ... |
desc | close, dup, poll, select, epoll, ... |
# See return values and errors
strace -e trace=file ./myapp 2>&1 | grep -E "ENOENT|EPERM|EACCES|ENOTSUP"| Error | Meaning | Common cause |
|---|---|---|
ENOENT | No such file or directory | Config file missing, wrong path |
EACCES | Permission denied | File permissions, SELinux |
EPERM | Operation not permitted | Missing capability, suid needed |
EADDRINUSE | Address already in use | Port already bound |
ETIMEDOUT | Connection timed out | Network unreachable, firewall |
ECONNREFUSED | Connection refused | Server not listening |
EAGAIN | Resource temporarily unavailable | Non-blocking I/O, try again |
ENOMEM | Out of memory | Allocation failed |
EBADF | Bad file descriptor | Using closed/invalid fd |
ENOEXEC | Exec format error | Wrong binary format for arch |
# Find what file is not found
strace ./myapp 2>&1 | grep 'ENOENT'
# Example output:
# openat(AT_FDCWD, "/etc/myapp.conf", O_RDONLY) = -1 ENOENT (No such file or directory)
# → Config file expected at /etc/myapp.conf# Show strings fully (default truncates at 32 chars)
strace -s 256 ./myapp
# Timestamps
strace -t ./myapp # wall clock time
strace -T ./myapp # time spent in each syscall
strace -r ./myapp # relative timestamps
# System call count summary
strace -c ./myapp
# Shows count, time, errors per syscall — great for profiling
# Trace with PIDs in output (for -f)
strace -f -p ./myapp
# Output: [pid 12346] open("/etc/passwd", O_RDONLY) = 3
# Decode numerical arguments
strace -e verbose=all ./myapp
# Print instruction pointer at each syscall
strace -i ./myapp# Trace all library calls
ltrace ./myapp
# Trace specific library function
ltrace -e malloc,free,fopen ./myapp
# Trace nested calls (lib → lib)
ltrace -n 2 ./myapp # indent nested calls
# Trace with syscalls too
ltrace -S ./myapp
# Attach to running process
ltrace -p 12345
# Summary statistics
ltrace -c ./myappTypical ltrace output:
malloc(1024) = 0x55a1b2c3d000
fopen("/etc/myapp.conf", "r") = 0
free(0x55a1b2c3d000) = <void>strace vs ltrace:
| strace | ltrace | |
|---|---|---|
| Traces | Kernel syscalls | User-space library calls |
| Overhead | Lower | Higher (PLT hooking) |
| Shows | open(), read(), write() | fopen(), malloc(), printf() |
| Use when | Binary interacts with OS/files/network | Binary calls library functions you can't see |
# Find missing config file
strace -e trace=openat,open ./myapp 2>&1 | grep ENOENT
# Find what network connections are made
strace -e trace=network -f ./myapp 2>&1 | grep connect
# Debug dynamic library loading failures
strace -e trace=openat ./myapp 2>&1 | grep "\.so"
# Find permission issues
strace -e trace=file ./myapp 2>&1 | grep -E "EACCES|EPERM"
# Debug slow startup (find where time is spent)
strace -c ./myapp 2>&1
# Look for high % time in unexpected syscalls
# Watch IPC/shared memory
strace -e trace=ipc,shm ./myapp
# Find what the binary exec's
strace -e trace=execve -f ./myappIf a program is killed by a seccomp policy, strace reveals which syscall triggered it:
strace -e trace=all ./myapp 2>&1 | tail -5
# Often shows the last syscall before SIGSYSFor strace output patterns and ltrace filtering examples, see references/strace-patterns.md.
skills/debuggers/gdb when strace shows the failing location and you need to inspect internalsskills/binaries/elf-inspection to understand what libraries and symbols a binary usesskills/binaries/dynamic-linking for diagnosing LD_* and library loading issuesskills/profilers/linux-perf for performance profiling (strace overhead is too high for perf)© mohitmishra786, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 1 other file (references) in skills/profilers/strace-ltrace of mohitmishra786/low-level-dev-skills.
Open the folder on GitHubat commit bdc5847
Strace Ltrace next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Strace Ltrace this skillmohitmishra786/low-level-dev-skills | 253 | — | ~1.6k | Automated safety check: Pass | MIT | |
| Code Review ChecklistshareAI-lab/learn-claude-code | 78k | 5 repos | ~1.1k | Automated safety check: Pass | MIT | |
| LLM Torch Profiler Analysissgl-project/sglang | 37k | 2 repos | ~6.4k | Automated safety check: Pass | Apache-2.0 | |
| Pycrazyguitar/pysheeet | 8.2k | — | ~886 | Automated safety check: Pass | MIT | |
| Cmux Debugging Guidemanaflow-ai/cmux | 28k | 1 repos | ~1.1k | Automated safety check: Pass | Custom licence | |
| Electron Heap Snapshot Analysiskeybase/client | 9.3k | — | ~875 | Automated safety check: Pass | BSD-3-Clause |
shareAI-lab/learn-claude-code
Reviews code against a five-part checklist covering security, correctness, performance, maintainability and testing, and reports findings in a fixed format.
sgl-project/sglang
Unified LLM torch-profiler triage skill for sglang, vllm, TensorRT-LLM, and TokenSpeed.
crazyguitar/pysheeet
Comprehensive Python programming reference covering syntax, concurrency, networking, databases, ML/LLM development, and HPC.
manaflow-ai/cmux
Covers debug logging, the Debug menu, profiling rules and runtime pitfalls for working on the cmux macOS terminal app.
keybase/client
Analyzes V8, Chrome and Electron .heapsnapshot files with Node scripts to find memory leaks, detached DOM nodes and the retainer paths that keep objects alive.
ben-manes/caffeine
Runs controlled JMH experiments on the Caffeine cache to find shared contention and hot-path waste, then reviews correctness and returns a reviewable patch.
mohitmishra786/low-level-dev-skills
Guides reading and writing AArch64 and ARM Thumb assembly: compiler output, inline asm, registers, the AAPCS calling convention and NEON or SVE basics.
mohitmishra786/low-level-dev-skills
Reference for RISC-V assembly on RV32 and RV64: register names and calling convention, extension naming, GCC and Clang inline asm, and QEMU with GDB debugging.
mohitmishra786/low-level-dev-skills
Explains x86-64 registers, the System V AMD64 calling convention, and how to read compiler-generated or inline assembly.
mohitmishra786/low-level-dev-skills
Guides your agent through Bazel for C/C++ projects: BUILD files, Bzlmod dependencies, toolchain registration, remote execution, dependency queries and sandbox debugging.
mohitmishra786/low-level-dev-skills
Binary hardening skill for security-hardened C/C++ builds. An agent skill from mohitmishra786/low-level-dev-skills.
mohitmishra786/low-level-dev-skills
GNU binutils skill for binary manipulation and analysis. An agent skill from mohitmishra786/low-level-dev-skills.
Categories
strace and ltrace skill for system call and library call tracing. Strace Ltrace is an agent skill from mohitmishra786/low-level-dev-skills. strace and ltrace skill for system call and library call tracing.
Strace Ltrace fits situations like: A binary behaves incorrectly without crashing; diagnosing file-not-found errors; permission failures; unexpected library calls by tracing syscalls and library function calls.
Run `npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a claude-code`. Or copy the skill folder (skills/profilers/strace-ltrace in mohitmishra786/low-level-dev-skills) into .claude/skills/strace-ltrace in your project. Claude Code loads it when a task matches its description.
Run `npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a codex`. Or copy the skill folder (skills/profilers/strace-ltrace in mohitmishra786/low-level-dev-skills) into .agents/skills/strace-ltrace in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mohitmishra786/low-level-dev-skills --skill strace-ltrace -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/strace-ltrace, .gemini/skills/strace-ltrace, .github/skills/strace-ltrace and .opencode/skills/strace-ltrace in your project.
SKILL.md names no scripts, command-line tools or credentials: Strace Ltrace is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Strace Ltrace is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1.6k tokens (SKILL.md is roughly 6.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.1k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Strace Ltrace: Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), LLM Torch Profiler Analysis (sgl-project/sglang, 37k stars), Py (crazyguitar/pysheeet, 8.2k stars) and Cmux Debugging Guide (manaflow-ai/cmux, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
mohitmishra786 (a GitHub user) maintains it in mohitmishra786/low-level-dev-skills, which has 253 GitHub stars. The repository holds 138 skills in this directory. The repository was last updated on June 27, 2026.
Source: mohitmishra786/low-level-dev-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.