Agent skill · charleswiltgen
axiom-build
Use when ANY iOS build fails, test crashes, Xcode misbehaves, or environment issue occurs before debugging code. Covers build failures, compilation errors, dependency conflicts, simulator problems, environment-first diagnostics.
What it needs
About 9k tokens when loaded.
What this skill does
Cursor MCP Tool Boundary The xclog, xcsym, and xcprof examples below are reference syntax, not executable commands for Cursor. Map each subcommand to the same-named MCP tool—for example, xclog launch to axiomxcloglaunch, xcsym crash to axiomxcsymcrash, and xcprof record to axiomxcprofrecord—and preserve its arguments as structured fields. Do not run a bare helper binary. If a required MCP tool is unavailable, stop and report that the Axiom MCP integration is missing; do not fall back to a same-named executable. Build & Environment You MUST use this skill for ANY build, environment, or Xcode-related issue before debugging application code. Cursor Subagent Routing Delegate to the appropriate Cursor subagent when this router calls for a specialized auditor. When to Use Use this router when you encounter: Build failures (BUILD FAILED, compilation errors, linker errors) Test crashes or hangs Simulator issues (won't boot, device errors) Xcode misbehavior (stale builds, zombie processes) Dependency conflicts (CocoaPods, SPM) Build performance issues (slow compilation) Environment issues before debugging code Routing Logic This router invokes specialized skills based on the specific issue: 1. Environment-First Issues → xcode-debugging Triggers: BUILD FAILED without obvious code cause Tests crash in clean project Simulator hangs or won't boot "No such module" after SPM changes Zombie xcodebuild processes Stale builds (old code still running) Clean build differs from incremental build Device Hub / predicted-vs-built issues in Xcode 27 (OS27) Reproducing a device-only bug on a simulator (Device Hub) (OS27) Why xcode-debugging first: 90% of mysterious issues are environment, not code. Check this BEFORE debugging code. Invoke: skills/xcode-debugging.md --- 2. Slow Builds → build-performance Triggers: Compilation takes too long Type checking bottlenecks Want to optimize build time Build Timeline shows slow phases Invoke: skills/build-performance.md --- 3. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills charleswiltgen/axiom-build--0993ce