Skill Claude CodeCodex
Always-on backend engineering quality kernel for Rust/Axum harness work. Use when changing or reviewing backend services, servers, workers, contracts, repo-tools, platform-facing backend metadata, or backend documentation. Guides invariant-first design, boundary discipline, evidence language, and template-quality code…
Skill Claude CodeCodex
Maintains contracts, schema, shared protocol, and generated contract artifacts. Owns packages/contracts/, docs/contracts/, verification/contract/. Use when changing shared DTOs, event schemas, error shapes, contract docs, generated protocol artifacts, or contract drift checks. Runs type generation, detects contract…
Skill Claude CodeCodex
Finds architecture deepening opportunities using seams, module depth, deletion tests, evidence hierarchy, and repository ownership boundaries. Use when reviewing architecture, reducing coupling, improving testability, or evaluating whether a module, trait, adapter, worker, service, or boundary is too shallow.
Skill Claude CodeCodex
Disciplined diagnosis workflow for failing gates, regressions, flaky behavior, performance regressions, and suspicious backend/runtime behavior. Use when the user reports a bug, broken invariant, failing command, failing test, or asks to diagnose/debug a problem.
Skill Claude CodeCodex
Alignment workflow for ambiguous harness plans, architecture choices, scope, and terminology. Use when requirements are fuzzy, terms are overloaded, a decision affects multiple ownership boundaries, or the user asks to stress-test a plan before implementation.
Skill Claude CodeCodex
Vertical-slice test-driven workflow for backend harness features and bug fixes. Use when adding or changing service, server, worker, contract, or repo-tool behavior, or when the user asks for TDD, red-green-refactor, or test-first implementation.
Skill Claude CodeCodex
Explains an unfamiliar repository area one layer up using ownership, callers, seams, evidence level, and gate context. Use when the user or agent is unfamiliar with a code area, needs a map before editing, or asks how a module fits into the harness.
Skill Claude CodeCodex
Top-level orchestrator. Reads user intent, audits touched paths, routes tasks to domain subagents, dispatches in dependency order, converges results, and preserves repository boundaries. Use when work spans multiple ownership boundaries, touches agent/docs/tooling control plane, or needs path routing and gate…
Skill Claude CodeCodex
Maintains platform model, topology, generators, validators, infra declarations, and ops runbooks. Owns platform/model/, platform/schema/, infra/, ops/. Use when changing platform metadata, topology, deployable shape, generators, validators, infra declarations, operations runbooks, secrets shape, or GitOps delivery…
Skill Claude CodeCodex
Maintains servers, handlers, routes, middleware, and sync entrypoints. Owns servers/bff/, servers/gateway/, servers/internal-rpc/. Use when changing HTTP handlers, routes, middleware, API composition, server entrypoints, request/response adaptation, or protocol integration. Does protocol adaptation and API composition…
Skill Claude CodeCodex
Maintains services, domain logic, application layer, policies, ports, and service-local distributed semantics in services/ /model.yaml. Owns services/, fixtures/, verification/ (service-level). Services are pure libraries — no main.rs, no HTTP server, no message consumer loops. Use when changing services/…
Skill Claude CodeCodex
Creates, edits, or reviews repository agent skills with triggerable descriptions, progressive disclosure, and boundary-safe instructions. Use when adding, editing, or reviewing .agents/skills/ or workflow skill documentation.
Skill Claude CodeCodex
Maintains workers, async executors, projectors, schedulers, and sync coordinators. Owns workers/, verification/resilience/, verification/topology/, verification/replay/. Use when changing workers/, replay paths, async execution, projection behavior, checkpointing, retry, dedupe, or worker recovery evidence. Every…
Instructions file CodexOpenCode
Instructions for openclosed-org/axum-harness, covering agents.md, 1. language, 2. repository identity, 3. operating posture and 4. development loop.