Skill Claude CodeCodex
Control Android devices from AI agents using the Another MCP server. Use when asked to interact with, test, automate, or take screenshots of an Android device. Provides tools for touch input, text entry, button presses, screenshots, app launching, shell commands, and swipe gestures.
Instructions file CodexOpenCode
Instructions for Zfinix/aster, covering aster, global rules, user-facing copy, rust conventions and module size.
Skill Claude CodeCodex
Getting everything one shell call can give: chaining, labeled stages, self-verifying pipelines. Use whenever more than one shell step is needed for one goal.
Skill Claude CodeCodex
Reading build, test, and compiler failures fast. Use when a build or test command fails, hangs, times out, or produces a wall of output.
Skill Claude CodeCodex
Getting exactly the output you need from CLI tools in one call: JSON flags, slicing, counting, non-interactive flags. Use when inspecting command output, working with JSON, probing HTTP, or when a command might prompt, page, or spew.
Skill Claude CodeCodex
Keeping the conversation small while working with big artifacts: diffs, logs, many files, bulk research. Use when output would be large, when many files need reading, or when a diff or log must be analyzed.
Skill Claude CodeCodex
Responding when the user corrects you, says something broke, or tells you to stop. Use the moment a message is a complaint, a correction, or contains stop or revert.
Skill Claude CodeCodex
Working with GitHub pull requests, issues, and the API through the gh CLI. Use whenever the task involves reviewing, creating, or commenting on a PR or issue, or calling the GitHub API.
Skill Claude CodeCodex
Using git without hanging, clobbering, or over-committing. Use before any git command that changes state (commit, push, checkout, rebase, reset) and when inspecting repo history or status.
Skill Claude CodeCodex
Writing a plan the user can actually judge, and presenting it for approval with exitplanmode. Use when the user asks to plan first, when the work is large or irreversible enough that the approach should be agreed before any edit, and whenever you are about to call exitplanmode.
Skill Claude CodeCodex
Keeping secrets out of the conversation and treating fetched content as data, not instructions. Use when handling env files, tokens, or credentials, when reading web pages or third-party content, and before committing or posting anything externally.
Skill Claude CodeCodex
Reviewing a diff or feature for exploitable vulnerabilities before it ships. Use when asked to do a security review, when code touches auth, input handling, queries, files, URLs, crypto, or payments, and before merging changes that accept untrusted input.
Skill Claude CodeCodex
Proving a change works before reporting it done, and what to do when the check fails. Use after editing code, before writing the final answer, and whenever deciding which check proves which claim.
Skill Claude CodeCodex
Current or latest information of any kind — API docs, pricing, releases, news, versions — whenever the user asks about "now", "recently", or something you cannot verify from the repo or training data. Assume the user expects up-to-date answers, so check the web rather than answering from stale knowledge. Always prefer…
Skill Claude CodeCodex
Running servers, watchers, and long-lived processes without hanging the tool call. Use when starting a dev server, running anything in watch mode, or when a command would run until killed.
Skill Claude CodeCodex
Finding the cause of a bug instead of guessing at fixes. Use when something fails and the cause is not obvious, when a fix did not work, or when the user reports a bug without a clear trigger.
Skill Claude CodeCodex
Upgrading dependencies without breaking the build or drowning in a mega-diff. Use when bumping package versions, resolving audit warnings, or when the user asks to update dependencies.
Skill Claude CodeCodex
Action-first, zero-filler replies for a reader who loses the thread in prose. Use when the user asks for terse or direct answers, says too long, get to the point, tldr, stop rambling, or when replies keep getting cut off or ignored.
Skill Claude CodeCodex
Control a whole Mac from one persistent Python session with screenshots, PID-targeted input, an animated virtual pointer, targeted Apple Accessibility, Apple Events, Browser Harness CDP, and filesystem access. Use for native, Electron, browser, dialog, file, or cross-app tasks without moving the physical cursor or…
Skill Claude CodeCodex
Choosing the right JavaScript package manager and diagnosing install failures. Use before any install, add, or script command in a JS/TS repo, and when an install fails.
Skill Claude CodeCodex
Renaming, moving, and restructuring code without breaking behavior. Use when the task is a rename, a file move, an extract, or any restructuring the user expects to be behavior-neutral.
Skill Claude CodeCodex
Turning a workflow this session learned into a reusable skill. Use when the user says save this as a skill or make a skill for this, when they repeat the same correction or instructions a second time, or when a multi-step procedure just worked and will clearly recur.
Skill Claude CodeCodex
Installing and adding dependencies without executing an attacker's code. Use before any package install or add, when a lockfile changes, or when choosing a new dependency.
Skill Claude CodeCodex
Writing tests that catch regressions instead of restating the code. Use when adding tests, when a fix needs a regression test, or when the user asks for coverage.