Agent skills
Skills you can use with AI coding agents, indexed from public GitHub repositories.
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verifying-hunches
Use when about to claim discovery during debugging. Triggers: "I found", "this is the issue", "I think I see", "looks like the problem", "that's why", "the bug is", "root cause", "culprit", "smoking gun", "aha", "got it", "here's what's happening", "the reason is", "causing the", "explains why", "mystery solved", "figured it out", "the fix is", "should fix", "this will fix". Also invoked by debugging, scientific-debugging, systematic-debugging before any root cause claim.
axiomantic/spellbook 5
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finishing-a-development-branch
Use when implementation is complete, tests pass, and you need to decide the integration path. Triggers: 'done with this branch', 'ready to merge', 'ship it', 'wrap this up', 'how should I integrate this', 'what next after implementation'. NOT for: PR creation mechanics (use creating-issues-and-pull-requests).
axiomantic/spellbook 5
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sharpening-prompts
Use when reviewing LLM prompts, skill instructions, subagent prompts, or any text that will instruct an AI. Triggers: "review this prompt", "audit instructions", "sharpen prompt", "is this clear enough", "would an LLM understand this", "ambiguity check". Also invoked by instruction-engineering, reviewing-design-docs, and reviewing-impl-plans for instruction quality gates.
axiomantic/spellbook 5
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generating-diagrams
Use when generating flowcharts, diagrams, dependency graphs, or visual representations of processes, relationships, architecture, or state machines. Triggers: 'diagram this', 'flowchart', 'visualize', 'dependency graph', 'ER diagram', 'state machine diagram', 'class diagram', 'sequence diagram', 'map the relationships', 'draw the architecture', 'how does X connect to Y'. NOT for: simple bullet point explanations, runtime monitoring, or text-only documentation.
axiomantic/spellbook 5
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audio-notifications
Reference for TTS and OS notification configuration. Auto-loads when TTS is enabled (session_init reports TTS active). Also triggered by: 'mute', 'unmute', 'change voice', 'volume', 'notify', 'notification settings', '/tts', '/notify', 'kokoro', 'speak', 'audio feedback'.
axiomantic/spellbook 5
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managing-artifacts
Use when generating documents, reports, plans, audits, or deciding where to save output files. Triggers: 'save report', 'write plan', 'where should I put this', 'where does this go', 'output directory', 'save this somewhere'.
axiomantic/spellbook 5
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security-auditing
Use when auditing skills, commands, hooks, and MCP tools for security vulnerabilities. Triggers: 'security audit', 'scan for vulnerabilities', 'check security', 'audit skills', 'audit MCP tools', 'is this safe', 'check for injection', 'OWASP'. NOT for: general code review (use code-review --audit).
axiomantic/spellbook 5
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emotional-stakes
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 instruction-engineering) or prompt ambiguity review (use sharpening-prompts).
axiomantic/spellbook 5
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branch-context
Triggers: 'branch diff', 'what changed on this branch', 'merge base', 'stacked branches', 'branch-context.sh', 'what does this branch do', 'PR description', 'changelog', 'branch comparison', 'diff since', 'what work is on this branch'. Also relevant during PR creation and finishing-a-development-branch workflows.
axiomantic/spellbook 5
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designing-workflows
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.
axiomantic/spellbook 5
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opportunity-awareness
Triggers after completing substantive work (finishing a todo, returning from subagent, applying non-obvious convention, receiving user correction). Also: 'what should we capture', 'reusable pattern', 'should this be a skill', 'AGENTS.md update', 'knowledge gap'. Behavioral skill loaded at natural pause points.
axiomantic/spellbook 5
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merging-worktrees
Use when merging parallel worktrees back together after parallel implementation, combining parallel development tracks, or unifying branches from dispatched parallel agents. Triggers: 'merge worktrees', 'combine parallel branches', 'integrate parallel work', 'all tracks complete', 'bring everything together'.
axiomantic/spellbook 5
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using-lsp-tools
Use when mcp-language-server tools are available and you need semantic code intelligence. Triggers: 'find definition', 'find references', 'who calls this', 'rename symbol', 'type hierarchy', 'go to definition', 'where is this used', 'where is this defined', 'what type is this'. Provides navigation, refactoring, and type analysis via LSP.
axiomantic/spellbook 5
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finding-dead-code
Use when reviewing code changes, auditing new features, or cleaning up. Triggers: 'find dead code', 'find unused code', 'check for unnecessary additions', 'what can I remove', 'is this used anywhere', 'can I delete this', 'orphaned code', 'unused imports'.
axiomantic/spellbook 5
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fun-mode
Use when starting a session and wanting creative engagement. Triggers: '/fun', 'use a persona', 'be creative', 'make this fun', 'use a character', 'spice it up'. Session-level mode, not task-level.
axiomantic/spellbook 5
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devils-advocate
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'. Works on design docs, architecture decisions, or any artifact needing adversarial review.
axiomantic/spellbook 5
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documenting-tools
Use when writing MCP tools, API endpoints, CLI commands, or any function that an LLM will invoke. Also use when LLMs misuse tools due to poor descriptions. Triggers: 'document this tool', 'write tool docs', 'MCP tool', 'tool description quality', 'model keeps calling this wrong', 'improve tool description'. For human-facing API docs, standard documentation practices apply instead.
axiomantic/spellbook 5
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dehallucination
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 for: verifying technical claims in code (use fact-checking).
axiomantic/spellbook 5
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isolated-testing
Use when testing theories during debugging, or when chaos is detected. Triggers: "let me try", "maybe if I", "what about", "quick test", "see if", rapid context switching, multiple changes without isolation. Enforces one-theory-one-test discipline. Invoked automatically by debugging, scientific-debugging, systematic-debugging before any experiment execution.
axiomantic/spellbook 5
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using-git-worktrees
Use when starting feature work that needs isolation from current workspace, or setting up parallel development tracks. Triggers: 'worktree', 'separate branch', 'isolate this work', 'don't mess up current work', 'work on two things at once', 'parallel workstreams', 'new branch for this', 'keep my current work safe'.
axiomantic/spellbook 5
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analyzing-domains
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.
axiomantic/spellbook 5
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tarot-mode
Use when session returns mode.type='tarot', user says '/tarot', or requests roundtable dialogue with archetypes. Triggers: '/tarot', 'use tarot mode', 'roundtable with archetypes', 'tarot personas'. Session-level mode, not task-level.
axiomantic/spellbook 5
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spellbook-auditing
Meta-audit skill for spellbook development. Spawns parallel subagents to factcheck docs, optimize instructions, find token savings, and identify MCP candidates. Produces actionable report.
axiomantic/spellbook 5
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documentation-updates
Use after modifying library skills, library commands, or agents to ensure CHANGELOG, README, and docs are updated
axiomantic/spellbook 5