A kit for building with AI agents and also the engineering patterns around it.
Skill Claude CodeCodex
Audit the fable roadmap (docs/fableroadmap/) — verify claimed progress with proof, write a short report, update RESUME state + BACKLOG rank. Use at wave close or whenever the user asks how roadmap development is going. Triggers on - 'fable audit', 'roadmap audit', 'how is the roadmap going', 'audit progress', or…
Skill Claude CodeCodex
Run comprehensive agent-native architecture review with scored principles. Audits a codebase against 8 agent-native architecture principles (Action Parity, Tools as Primitives, Context Injection, Shared Workspace, CRUD Completeness, UI Integration, Capability Discovery, Prompt-Native Features) by launching parallel…
Skill Claude CodeCodex
Audit whether an AI agent can autonomously close the loop on problems in a given area — from discovering a symptom to verifying a fix — without human intervention. Evaluates documentation, diagnostic tools, commands, logs, and flows for completeness and actionability. Generates a gap-focused report with ratings. Use…
Skill Claude CodeCodex
Traces a workflow end-to-end through the harness-kit monorepo and creates a breadcrumb analysis doc in docs/breadcrumbanalysis/. Use this skill whenever the user wants to document a flow, trace a workflow, understand how a feature works across layers (frontend → backend → worker → CLI), or create debugging guides for…
Skill Claude CodeCodex
Generate changelog entries from git diffs, prepend to CHANGELOG.md, and optionally commit + PR. Use when the user wants to update the changelog.
Skill Claude CodeCodex
Compound a learning into a reusable pattern. Use after solving a non-trivial problem, discovering a principle worth reusing, or hitting a gotcha that would bite someone else. Triggers on: 'document this', 'capture this learning', 'that was tricky', 'let's compound this', 'compound this', or /hk-compound.
Skill Claude CodeCodex
Consults existing breadcrumb analysis docs before exploring the codebase. Use this skill whenever the user asks about how a flow works, where something happens in the code, how to debug or test a specific area, what files are involved in a feature, or needs to understand the path data takes through the system. Also…
Skill Claude CodeCodex
Run diagnostic scripts on tasks, specs, boards, or reflections. Wraps testingtools/ with proper working directory and output mode selection. Use this skill whenever the user wants to inspect, debug, or check the state of a task, spec, board, or reflection — even if they don't say 'inspect' explicitly. Triggers on…
Skill Claude CodeCodex
Inspect and debug errors via logs across the harness-kit monorepo. Reads the right log file based on the error layer — backend, frontend, celery, odin CLI, or odin task execution. Use this skill whenever someone mentions a 500 error, a stack trace, a crash, 'check the logs', 'what went wrong', a service not starting…
Skill Claude CodeCodex
Plan and execute an odin spec. Handles working directory, auth, nested-session detection, and post-run diagnostics. Use whenever the user wants to run a spec, test a spec, or do a smoke test. Triggers on: 'run this spec', 'test this spec', 'odin plan', 'smoke test', or /hk-local-run-spec.
Skill Claude CodeCodex
Resolve merge conflicts in the current branch. Only invoke when the user explicitly runs /hk-merge-resolve. Do NOT auto-trigger on mentions of merge conflicts, conflict markers, or similar keywords.
Skill Claude CodeCodex
Mock-first, layer-by-layer feature development. Instead of building a feature end-to-end and hoping the interface works, start by mocking at the user-facing surface with realistic data, get user acceptance on the experience, then deepen one complexity layer at a time with TDD. Everything is anchored on disk so work…
Skill Claude CodeCodex
Interactive Root Cause Analysis enforcer. Guides you through the 7-step RCA protocol: Reproduce, Locate, Hypothesis, Failing Test, Fix, Verify Live, Document. Use when debugging a bug, investigating a failure, or when something unexpected happened. This skill gates each step — it won't let you skip to a fix without…
Skill Claude CodeCodex
Iteratively improve any output by running a structured observe-hypothesize-change-rerun loop. Uses an organized scratch directory to prevent context blowup — the conversation stays thin while iterations accumulate on disk. Use when an output (reflection, plan, prompt, pipeline result) isn't good enough and needs…
Skill Claude CodeCodex
Run a scout wave over outside sources (links, blogs, trending repos) into a progressive-disclosure research wiki in the current project, then distill findings into the project's ideas/backlog file. Generic across projects. Use when the user shares links/blogs to research, asks to "scout", "build a wiki from these", or…
Skill Claude CodeCodex
Create and maintain a shift-handover HTML changelog artifact — a page the returning human reads in two minutes to know everything that happened while they were away. Generic across projects. Use when working autonomously for an away user, when asked for a changelog/progress page/catch-up artifact, or at every…
Skill Claude CodeCodex
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.…
Skill Claude CodeCodex
Run a codebase hygiene audit. Scans for misplaced files, dead code, temp files, security issues, structural problems, dependency slop, and git slop. Outputs a prioritized report with P0-P4 findings. Use periodically or before releases. Triggers on: 'audit the codebase', 'find slop', 'hygiene check', 'clean up', or…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: