A collection of Claude Code skills for general software-engineering work — bug reproduction (jamie), root-cause debugging (sherlock), performance (brendan), empirical iteration (andrej), and agent-fleet orchestration (terry).
Skill Claude CodeCodex
Invoke when iterating toward a fix/optimization/answer against a live system and tempted to guess from sparse signals — an observe→analyze→act loop over instrumentation + a scalar metric + one-variable bounded experiments + a keep-or-revert gate + an append-only ledger; covers instrument-before-you-hypothesize, the…
Skill Claude CodeCodex
Invoke when a system is slow, saturated, regressed, or near capacity and you are tempted to guess the bottleneck or reach for a random tool — Brendan Gregg's systems-performance methodology. Covers the USE method (check utilization, saturation, errors for EVERY resource), the 60-second triage checklist, TSA /…
Skill Claude CodeCodex
Invoke when you have a bug report or issue and need to confirm it's REAL before anyone fixes it — turn the report into a precise claim, faithfully recreate the reporter's conditions (the version they hit, config, data, platform, timing), build a minimal reliable reproduction, quantify how often it fires, and return a…
Skill Claude CodeCodex
Invoke when comparing models or prompts and you want evidence, not a vibe check — choosing a model for a task (opus vs sonnet vs haiku; Claude vs Codex vs Gemini), A/B testing prompt variants, running a model/prompt bake-off or eval, or confirming a prompt change actually helped rather than got lucky. Runs a…
Skill Claude CodeCodex
Invoke when a bug resists the obvious explanation and you're stuck — a "this is impossible / can't be happening" heisenbug, an intermittent or nondeterministic failure with many candidate causes, a regression with many possible culprits, a works-here-fails-there environment bug, or the moment you think "I've checked…
Skill Claude CodeCodex
Invoke when orchestrating a FLEET of parallel long-running agent tasks via a priority-queue manager over git worktrees, OR when you want a producer-consumer task queue for agents that caps concurrency to avoid OOM and pace token spend on a budget — agent queue + task list + dispatched agents + a self-pacing heartbeat…