Skill Claude CodeCodex
Detect the package ecosystem, run outdated/audit commands, propose a staged bump plan (patch → minor → major), regenerate the lockfile, run tests, and summarise breaking changes. Use when the user says "update dependencies", "bump deps", "what's outdated", "cargo update", "pip outdated", "go mod tidy", or "security…
Skill Claude CodeCodex
Deep BuildKit operational intuition — frontend pinning, RUN --mount (cache/secret/ssh), cache export/import backends, multi-platform QEMU vs native, buildx drivers, image hardening, SBOM/SLSA attestations, rootless caveats. Load for BuildKit tuning, cache miss diagnosis, multi-platform builds, build secrets, registry…
Skill Claude CodeCodex
Use when writing or reviewing technical documentation — READMEs, API reference, inline comments, architecture docs, runbooks, migration guides, changelogs, tutorials. Also use when user asks to "document this", "write docs", "write a README", "explain this code", "write a runbook", "improve these docs". Language- and…
Skill Claude CodeCodex
Use when the user mentions duplicated code, copy-paste, code clones, repeated code, similar code across files, overlapping implementations, code quality audit, code smells, technical debt involving duplication, or refactoring preparation. Also for cross-language duplication checks, CI duplication warnings, and…
Skill Claude CodeCodex
Iterative review-fix cycle that eliminates all critical issues. Runs code-reviewer, fixes critical findings, verifies tests pass, and repeats until clean or max iterations reached. Use when the user says "review and fix", "find and fix bugs", "clean up the code", "fix all issues", "review then fix", or any request…
Skill Claude CodeCodex
Deep GitHub Actions operational intuition — concurrency groups, OIDC federation, matrix semantics, composite vs reusable workflows, cache scope, expression injection, pullrequesttarget footguns, v4 artifact/cache breaking changes. Load for workflow gotchas, security hardening, OIDC setup, cache behavior, runner…
Skill Claude CodeCodex
Deep Go operational intuition — GC tuning (GOGC/GOMEMLIMIT), GOMAXPROCS in containers, escape analysis, pprof/trace, goroutine leaks, govulncheck, memory model. Load when tuning runtime, diagnosing leaks/GC pressure, reviewing escape analysis, or hitting module/build quirks. Skip for ordinary Go coding, channel…
Skill Claude CodeCodex
Deep Grafana stack operational intuition — Prometheus/Mimir cardinality cost, PromQL/LogQL pitfalls, alert lifecycle, provisioning + UID stability, histogram math, Tempo TraceQL, Alertmanager grouping. Load when diagnosing cardinality bombs, alert flapping, provisioning at scale, quantile correctness, or…
Skill Claude CodeCodex
Deep Hetzner operational intuition — Cloud vs Robot vs Storage Box split, server-type taxonomy, region availability, IPv4 cost model, snapshot vs backup vs image, firewall default-deny, hcloud CLI, Floating-IP aliasing, cloud-init, Terraform provider drift. Load when sizing Hetzner resources, migrating to/from…
Skill Claude CodeCodex
Use when the user asks to refactor, clean up, restructure, extract methods, reduce complexity, or improve code structure without changing behavior. Triggers on: extract method, move function, simplify conditional, reduce nesting, split class. To FIND duplicates first, use duplicate-code-detector then return here. Not…
Skill Claude CodeCodex
Deep Kubernetes operational intuition — QoS/eviction, scheduler failures, pod lifecycle and exit-code triage, DNS/NetworkPolicy subtleties, PV/PVC lifecycle, rollout/PDB/HPA, etcd hygiene. Load for cluster-level debugging, OOM/CrashLoop triage, Pending pods, networking weirdness, stuck storage, rollout tuning, or…
Skill Claude CodeCodex
Set up strict complexity linting for any project. Detects languages, recommends linters, configures strict rules, and installs a Stop hook to enforce them automatically. Use when prompted by the SessionStart detection message, or manually to configure/reconfigure linting.
Skill Claude CodeCodex
Diff-scoped mutation testing to verify test quality beyond coverage metrics. Detects language, selects the appropriate tool (Stryker, mutmut, cargo-mutants, PIT, gremlins), and runs mutations only on changed code. Use when asked to run mutation testing, check test quality, find weak tests, verify test coverage is…
Skill Claude CodeCodex
Deep OpenTelemetry operational intuition — propagator selection in mixed fleets, head- vs tail-based sampling, semantic-convention stability, collector pipeline ordering, OTLP pitfalls, cardinality cost control. Load when tuning OTel SDK/collector, propagator mixing, sampling design, semantic-convention migration, or…
Skill Claude CodeCodex
Use when optimizing backend, API, database, or system performance. Also use when response times are slow, queries need tuning, throughput is degraded, or someone says "just add caching." Triggers on: optimize API, backend slow, API latency, database performance, query optimization, server response time, connection…
Skill Claude CodeCodex
Deep PostgreSQL operational intuition — MVCC, VACUUM/autovacuum, WAL/checkpoints, streaming/logical replication, PgBouncer, deadlock diagnosis, pgstatstatements triage. Load when tuning operationally, diagnosing incidents, replication lag, vacuum issues, pool sizing, or xid wraparound. Skip for ordinary query writing…
Skill Claude CodeCodex
Deep Redis operational intuition — RDB/AOF persistence math, eviction policy semantics, SLOWLOG/LATENCY diagnostics, cluster vs Sentinel topology, hash slots/resharding, replication backlog, fragmentation, Valkey/KeyDB/Dragonfly variants. Load for persistence tradeoffs, eviction misbehavior, latency spikes…
Skill Claude CodeCodex
CLAUDE.md + engram memory lifecycle management. Generates structured reflections, reviews and applies them to CLAUDE.md, consolidates CLAUDE.md health, and maintains engram memory hygiene. Triggers ONLY on: /reflect, /reflect review, /reflect consolidate, or explicit requests like "prune CLAUDE.md", "review my engram…
Skill Claude CodeCodex
Use ONLY when the user explicitly requests multi-source research synthesis with citations — e.g., "/ct:research X", "research X in depth with citations", "investigate Y across authoritative sources", "compare approaches and cite sources". Applies systematic methodology with multi-hop reasoning and evidence-based…
Skill Claude CodeCodex
Deep Rust operational intuition — borrow patterns, lifetime variance, Pin/Unpin and async state machines, Send/Sync, tokio scheduler quirks, unsafe/UB, miri, build/runtime profiling, allocators, nostd. Load for borrow-checker workarounds, async pin pitfalls, unsafe diagnosis, tokio tuning, build-time triage, or…
Skill Claude CodeCodex
Deep secret-management operational intuition — tradeoffs across sops+age, KMS, Vault, Sealed Secrets, External Secrets Operator, k8s Secrets; rotation, threat boundaries, leak detection, workflow specifics. Load when choosing approaches, designing rotation, configuring sops/Vault/ESO/Sealed Secrets, etcd encryption…
Skill Claude CodeCodex
Deep SQLite operational intuition — WAL mechanics, checkpointing, fsync semantics, multi-process locking, FTS5 internals, replication (Litestream/LiteFS/rqlite). Load when diagnosing WAL, SQLITEBUSY, multi-writer concurrency, network-FS corruption, pragma tuning, or backup/replication. Skip for ordinary SQL, schema…
Skill Claude CodeCodex
Parse a pasted stack trace, identify the runtime, separate user from library frames, locate the top user frame in source, and produce a ranked top-3 hypothesis tree. Read-only — does NOT edit code, reproduce, or propose a fix. Use when the user says "here's the stack trace", "investigate this traceback", "why did this…
Skill Claude CodeCodex
Deep systemd operational intuition — unit dependency semantics, Type= internals, restart-throttle math, cgroup v2 control, hardening directives, socket/timer activation, journald forensics. Load when authoring/debugging unit files, diagnosing startup failures, restart loops, cgroup limits, or sandbox tuning. Skip for…