axiomantic/spellbook

Multi-platform AI assistant skills and workflows. Serious engineering. Also fun.

This repository also configures its own agents. See what spellbook tells them →

10Stars on the repository
188Mods indexed here, across every type
3d agoLast push, which is what freshness is scored on
MITLicence, which decides whether bodies are shown

axiomantic/spellbook

Skill Claude CodeCodex

Use for branch code review whenever the user does not explicitly ask for a lightweight pass — this is the DEFAULT for unspecified-scope review. Triggers: 'code review', 'review this branch', 'review the changes', 'review what's on this branch', 'do a code review of the branch', 'branch code review', 'review the work'…

not rated 10 3d ago A 180 tokens original MIT

adversarial-review

02

axiomantic/spellbook

Skill Claude CodeCodex

Use when dispatching a subagent to re-check work against external feedback (PR review comments, audit findings, multi-comment review cycles, 'did I really address X' verifications). Triggers: 'verify all the review comments are addressed', 'check that I really fixed all the audit findings', 'did I miss anything from…

not rated 10 3d ago A SkillSpector: pass 117 tokens original MIT

agent2agent

03

axiomantic/spellbook

Skill Claude Code

Use when the user wants two or more Claude/agent sessions to talk to each other via the filesystem. Triggers: 'your name for inter-agent chat is X', 'your a2a name is X', 'listen for messages', 'open as X', 'talk to the session named Y', 'send a message to session Y', 'check the inbox', 'reply to that session'…

not rated 10 3d ago A SkillSpector: pass 139 tokens original MIT

analyzing-domains

04

axiomantic/spellbook

Skill Claude CodeCodex

Use when entering unfamiliar domains, modeling complex business logic, or when terms/concepts are unclear. Triggers: 'what are the domain concepts', 'define the entities', 'model this domain', 'DDD', 'ubiquitous language', 'bounded context'. Also invoked by develop during research phase.

not rated 10 3d ago A 67 tokens original MIT

axiomantic/spellbook

Skill Claude CodeCodex

Use when evaluating skill effectiveness or comparing skill versions. Triggers: 'how are skills performing', 'skill metrics', 'which skills fire correctly', 'skill invocation analysis', 'compare skill versions', 'analyze skill usage'. NOT for: authoring or editing a skill (use writing-skills).

not rated 10 3d ago A SkillSpector: pass 68 tokens original MIT

assembling-context

06

axiomantic/spellbook

Skill Claude CodeCodex

Use when preparing context for subagent dispatch or managing token budgets. Triggers: 'prepare context for', 'assemble context', 'token budget', 'context package', 'what context does the subagent need'. Also invoked by develop during planning and execution phases.

not rated 10 3d ago A 56 tokens original MIT

axiomantic/spellbook

Skill Claude CodeCodex

Use when writing JavaScript or TypeScript code with asynchronous operations, fixing promise-related bugs, or converting callback/promise patterns to async/await. Triggers: 'promise chain', 'unhandled rejection', 'race condition in JS', 'callback hell', 'Promise.all', 'sequential vs parallel async', 'missing await'.…

not rated 10 3d ago A SkillSpector: pass 81 tokens original MIT

axiomantic/spellbook

Skill Claude CodeCodex

Use when auditing whether tests or verification tools genuinely catch failures, or when user expresses doubt about test/verifier quality. Triggers: 'are these tests real', 'do tests catch bugs', 'tests pass but I don't trust them', 'test quality audit', 'green mirage', 'verifier audit', 'linter audit', 'shallow…

not rated 10 3d ago A SkillSpector: warn 107 tokens original MIT

autonomous-mode

09

axiomantic/spellbook

Skill Claude CodeCodex

Use when the operator asks for unattended work. Triggers: 'work autonomously', 'fully autonomous', "don't stop unless you have a blocker", 'keep going until it's done', 'don't check in with me', 'run until finished', 'no need to ask, just do it'. NOT for: a single unattended command, YOLO/permission-bypass questions…

not rated 10 3d ago A SkillSpector: pass 106 tokens original MIT

branch-context

10

axiomantic/spellbook

Skill Claude CodeCodex

Branch diff mechanics: merge-base detection, branch-context.sh, stacked branches, worktree context. Loaded by the diff-semantics rule module. Triggers: 'what changed on this branch', 'branch diff', 'merge base', 'PR description', 'changelog'.

not rated 10 3d ago A SkillSpector: pass 58 tokens original MIT

code-review

11

axiomantic/spellbook

Skill Claude CodeCodex

Use when the user EXPLICITLY asks for a lightweight pass, or for feedback/audit modes. Triggers: 'quick review', 'light review', 'look over this', '--quick', 'check my work', 'self-review before PR', 'review my code', 'audit this code', 'PR comments to address', 'reviewer said', 'address feedback', 'review PR #X…

not rated 10 3d ago A SkillSpector: pass 177 tokens original MIT

axiomantic/spellbook

Skill Claude CodeCodex

Use when creating GitHub pull requests or issues with template compliance. Triggers: 'create a PR', 'open a pull request', 'file an issue', 'create issue'. Also invoked by finishing-a-development-branch. NOT for: deciding whether to merge or PR (use finishing-a-development-branch).

not rated 10 3d ago A SkillSpector: warn 71 tokens original MIT

debugging

13

axiomantic/spellbook

Skill Claude CodeCodex needs its repo

Use when debugging bugs, test failures, or unexpected behavior. Triggers: 'why isn't this working', 'this doesn't work', 'X is broken', 'something's wrong', 'getting an error', 'exception in', 'stopped working', 'regression', 'crash', 'hang', 'flaky test', 'intermittent failure', or when user pastes a stack…

not rated 10 3d ago A SkillSpector: warn 104 tokens original MIT

dedupe

14

axiomantic/spellbook

Skill Claude CodeCodex

Use when consolidating overlapping instruction files, auditing skills for duplicated guidance, or pruning paraphrased prose across a markdown corpus. Triggers: 'dedupe these skills', 'dedupe these instructions', 'find duplicate instructions', 'consolidate instruction files', 'find paraphrased prose', 'collapse…

not rated 10 3d ago A SkillSpector: pass 75 tokens original MIT

deep-research

15

axiomantic/spellbook

Skill Claude CodeCodex

Use when researching complex topics, evaluating technologies, investigating domains, or answering multi-faceted questions requiring web research. Triggers: 'research X', 'investigate Y', 'evaluate options for Z', 'what are the best approaches to', 'help me understand', 'deep dive into', 'compare alternatives', 'look…

not rated 10 3d ago A SkillSpector: pass 97 tokens original MIT

dehallucination

16

axiomantic/spellbook

Skill Claude CodeCodex

Use when verifying that AI-generated claims, references, or assertions are grounded in reality. Triggers: 'does this actually exist', 'is this real', 'did you hallucinate', 'verify these references', 'check if this is fabricated', 'reality check', 'ground truth'. Invoked as quality gate by develop and deep-research.…

not rated 10 3d ago A 89 tokens original MIT

design-exploration

17

axiomantic/spellbook

Skill Claude CodeCodex

Use when exploring design approaches, evaluating alternatives, or making architectural decisions. Triggers: 'explore options', 'explore design options', 'design alternatives', 'evaluate approaches', 'design tradeoffs', 'what are the tradeoffs', 'how should I approach', 'sketch out an approach', 'how would you…

not rated 10 3d ago A SkillSpector: warn 88 tokens original MIT

designing-workflows

18

axiomantic/spellbook

Skill Claude CodeCodex

Use when designing systems with explicit states, transitions, or multi-step flows. Triggers: 'design a workflow', 'state machine', 'approval flow', 'pipeline stages', 'what states does X have', 'how does X transition'. Also invoked by develop when workflow patterns are detected.

not rated 10 3d ago A SkillSpector: pass 63 tokens original MIT

develop

19

axiomantic/spellbook

Skill Claude CodeCodex

Use when building, creating, modifying, or planning any code change. Triggers: "implement X", "build Y", "add feature Z", "create X", "change how X works", "modify Y", "update the Z", "refactor X", "rework Y", "restructure Z", "make X do Y", "let's plan how to", "plan the implementation", "how should we implement"…

not rated 10 3d ago A 225 tokens original MIT

devils-advocate

20

axiomantic/spellbook

Skill Claude CodeCodex

Use when challenging assumptions, surfacing risks, or stress-testing designs and decisions. Triggers: 'challenge this', 'play devil's advocate', 'what could go wrong', 'poke holes', 'find the flaws', 'what am I missing', 'is this solid', 'red team this', 'what are the weaknesses', 'risk assessment', 'sanity check'.…

not rated 10 3d ago A SkillSpector: pass 97 tokens original MIT

distilling-prs

21

axiomantic/spellbook

Skill Claude CodeCodex

Use when triaging, categorizing, or summarizing PR changes to decide where human attention should go. Triggers: 'summarize this PR', 'what changed in PR #X', 'triage PR', 'which files need review', 'PR overview', 'categorize changes', or pasting a PR URL. NOT for: judging code quality or producing findings on a branch…

not rated 10 3d ago A SkillSpector: pass 155 tokens original MIT

axiomantic/spellbook

Skill Claude CodeCodex

Use when generating, improving, or auditing project documentation. Triggers: 'document this project', 'write docs', 'generate documentation', 'docs are outdated', 'need a README', 'create tutorials', 'API reference docs', 'doc audit', 'documentation review'. Standalone README: use /write-readme. NOT for: code changes…

not rated 10 3d ago A SkillSpector: warn 93 tokens original MIT

emotional-stakes

23

axiomantic/spellbook

Skill Claude CodeCodex

Use when writing subagent prompts, skill instructions, or any text where accuracy is critical and hallucination would cause harm. Triggers: 'make this accurate', 'high-stakes prompt', 'this needs to be truthful', 'critical instructions', 'get this right'. NOT for: general prompt improvement (use…

not rated 10 3d ago A SkillSpector: pass 81 tokens original MIT

axiomantic/spellbook

Skill Claude CodeCodex

Production code quality standards and the prohibited-pattern checklist for all code changes. Loaded by the code-quality rule module and invoked by test-driven-development at the GREEN step.

not rated 10 3d ago A 37 tokens original MIT

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