praxstack

@praxstack source repo

84 skills
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Chronicle 2 · praxstack bundle
Personal journal intelligence that transforms raw, unorganized thoughts into structured diary entries with clinically-informed psychological analysis. Use when the user provides journal entries, diary text, stream-of-consciousness writing, voice memo transcriptions, or asks to process daily thoughts into a structured format. Produces narrative entries, gratitude extraction, multi-level psychological analysis (surface/medium/clinical), health pattern flags, therapeutic micro-actions, bridge-to-tomorrow planning, and longitudinal pattern tracking. Triggers: 'journal entry', 'diary entry', 'process my thoughts', 'Chronicle', 'daily reflection', 'write up my day', 'voice memo journal'.

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Backend Pe 2 · praxstack bundle
Principal-engineer-grade backend design and review orchestrator. Routes to the right language-specific backend skill (Python, TypeScript, Java, C++, Node.js, JavaScript, Python-ML) and applies cross-cutting backend methodology - correctness, reliability, performance, security, observability, data consistency, scalability, operability. Use when the user asks to design, build, review, harden, scale, or debug a production backend service, distributed system, or data pipeline and a language choice exists or is implied. Trigger keywords - backend design, system design, principal engineer, production backend, service architecture, distributed system, microservice, API design, backend review, harden service, backend-pe, supermode, antigravity. Not for single-file scripts, prototypes without reliability needs, or pure frontend work.

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Frontend Pe 2 · praxstack bundle
Principal-frontend-engineer workflow for production-grade, design-led UI delivery. Use when the user demands a design-led UI, "ultra-frontend", Awwwards-style, or high-end UX, or when requests require a design-first workflow with motion strategy, luxury audit, and unconstrained implementation. Forces explicit aesthetic direction, spring-physics motion design, micro-interaction planning, and modern React/Next.js stack (App Router, React 19, Tailwind, Framer Motion, Zustand/Jotai) before any code is written. Triggers on "ultrafrontend", "high-end UX", "awwwards style", "world-class UI", "design first", "motion strategy". Not for: analysis/audit of existing UI (use ultrathink-frontend), cross-domain work (use super-mode-core), or depth-level selection (use kingmode). This is greenfield design-led implementation workflow, not analysis.

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Obsidian CLI 2 · praxstack bundle
Control Obsidian from the terminal using the CLI v2 (Obsidian 1.12+). Create, read, append, prepend, move, rename, delete files; manage frontmatter properties; list and toggle tasks; search the vault; analyze links; query Bases; manage plugins, themes, snippets, workspaces. Use when performing vault operations, automating note workflows, appending content to notes, managing frontmatter properties, searching the vault, running Base queries, or scripting Obsidian from bash. Requires Obsidian app running. Trigger phrases: "obsidian cli", "append to note", "create obsidian note", "search vault", "obsidian property", "obsidian task", "daily note", "obsidian backlinks", "orphans", "base:query".

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Spec Creator 2 · praxstack bundle
Create production-grade SPEC.md files — portable implementation contracts that any AI coding agent can build from without follow-up questions. Use this skill whenever the user wants to write a spec, specification, technical spec, implementation contract, SPEC.md, or service specification for any software task. Also trigger when the user says "spec out", "write a spec for", "create a spec", "define the contract for", or describes a system they want built and needs a thorough specification before implementation. This skill works for backend services, full-stack apps, CLI tools, SDKs, developer tools, and any domain. It produces specs at the level of a principal-engineer-authored portable implementation contract — not a PRD, not an HLD, but the artifact that sits between architecture and code.

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Idea Capturer 2 · praxstack bundle
Structured system for capturing fleeting thoughts, developing raw ideas into actionable concepts, and organizing creative thinking. Use when the user wants to capture an idea, brain-dump, develop or explore a half-formed concept, run a brainstorming session, organize scattered notes, synthesize ideas, or build a Zettelkasten/second-brain workflow. Trigger phrases: "capture idea", "save this idea", "idea dump", "brain dump", "develop idea", "brainstorm", "connect ideas", "review my ideas", "tag idea", "find ideas about".

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Blueprint Creator 2 · praxstack bundle
Create exhaustive BLUEPRINT.md files — the implementation bible that expands a SPEC.md into maximum granular detail so an AI coding agent can translate it line-by-line into code with zero interpretation. REQUIRES a SPEC.md to already exist. Use whenever the user wants to create a blueprint, implementation blueprint, detailed spec, "bible" document, or says "create the blueprint", "expand the spec", "make it more detailed", "generate BLUEPRINT.md", or "I need every detail spelled out." Also trigger when the user has a SPEC.md and wants to go deeper before implementation. The Blueprint is the final artifact before code — it takes the portable implementation contract (SPEC.md) and fills in every edge case, validation rule, error message, sequence, and example so nothing is left to judgment. Works for any software domain. If no SPEC.md exists, this skill MUST redirect the user to generate one first using spec-creator.

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Lecture Alchemist 2 · praxstack bundle
Transform raw lecture transcripts (Zoom, YouTube, classroom recordings) into structured, retention-optimized study notes with zero topic loss. Use when the user provides a lecture transcript, class recording text, or asks to process/convert lecture notes into study material. Handles WebDev, AI/ML, Web3, DSA, and other technical domains. Produces hierarchical topic breakdowns, cleaned code artifacts with enhanced comments, intuition builders for weak explanations, domain-specific technical analysis, knowledge-gap fills, Q&A extraction, flashcards, spaced repetition plans, three-level summaries, and actionable study materials. Triggers: 'process this transcript', 'convert lecture to notes', 'lecture notes', 'transcript to study material', 'Lecture Alchemist'.

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Svg Logo Designer 2 · praxstack bundle
Elite SVG logo design intelligence. Creates professional hand-crafted SVG logos, brand marks, icons, wordmarks, lettermarks, emblems, abstract marks, and visual identities. Uses a rigorous multi-phase discovery interview (2-3 rounds) to extract brand DNA, emotional tone, and design intent before generating. Produces multiple concepts with layout variations, full color systems, design tokens (CSS custom properties, JSON, Figma-ready specs), and optimized SVG using advanced techniques (gradients, masks, filters, blend modes, animations). Self-evaluates every concept against a 7-criterion quality rubric. Structured iterative refinement loop. Use when creating logos, brand marks, icons, symbols, visual identities, wordmarks, lettermarks, emblems, mascot marks, scalable vector branding, brand guidelines, or design systems from logos.

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Constellation Team 2 · praxstack bundle
Coordinate a cross-functional star-team workflow (Product Manager, Principal Engineer, Backend, Frontend, QA/Security, DevOps) with mandatory architecture and code-review checkpoints. Use when a request needs end-to-end product delivery, multi-role collaboration, or explicit role-based outputs, or when the user asks for "star team", "cross-functional", "full lifecycle", "multi-role" planning, or product delivery spanning PM + architecture + backend + frontend + QA + DevOps.

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Transcribe Refiner 2 · praxstack
Clean and reconstruct raw auto-generated captions (Zoom, YouTube, Teams, Google Meet, Otter.ai, etc.) into readable, coherent transcripts. Use when the user provides raw caption files (.txt, .vtt, .srt), meeting transcripts with timestamps and speaker tags, or asks to clean up/refine a transcript. Handles: timestamp removal, speaker tag normalization, filler word removal, broken sentence reconstruction, transcription error correction, paragraph formation. Preserves every piece of substantive content while removing noise. Trigger phrases: 'clean this transcript', 'refine captions', 'fix this transcript', 'process Zoom captions', 'clean up meeting notes'.

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Transcript Pipeline 2 · praxstack bundle
Deterministic, auditable transcript-to-tutorial workflow for Zoom class captions with optional resource enrichment. Use when asked to 'process this transcript', 'convert lecture to notes', 'run transcript pipeline', 'generate class tutorial from Zoom captions', 'validate transcript coverage', or 'enrich class resources' (Notion/Canva/Drive links) for bootcamp notes. Combines deterministic scripts (ingest, validate, publish) with chat-stage prompts (refine, synthesize, enhance) and keeps traceability in .pipeline/* artifacts.

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Concept Cartographer 2 · praxstack bundle
Generate visual concept maps, flowcharts, architecture diagrams, and relationship diagrams from structured notes or technical content using Mermaid syntax. Use when the user has lecture notes, study materials, or technical documentation and wants visual diagrams to aid understanding. Produces multiple diagram types: concept hierarchy maps, process flowcharts, architecture diagrams, comparison matrices, timeline diagrams, and mind maps. Trigger phrases: "create diagrams from notes", "visualize concepts", "concept map", "make flowcharts", "diagram this", "visual notes".

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Prax Teach V2 2 · praxstack bundle
Teach a concept or skill through adaptive, evidence-oriented tutoring that works for quick explanations, focused lessons, and persistent multi-session courses. Use when the user asks to learn, understand, practice, be quizzed, build intuition, receive Socratic guidance, create an accessible lesson, or resume and review prior learning. Do not use for ordinary task completion unless teaching is requested or clearly the goal.

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Briefing · praxstack bundle
Compile daily briefing with meeting context, active deals, and citation tracking

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Maintain · praxstack
Brain health checks: back-link enforcement, citation audit, filing validation, stale info detection, orphan pages, and benchmarks. Use when asked to check brain health, run maintenance, or audit quality.

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Brain Ops · praxstack
Brain knowledge base operations. The core read/write cycle: brain-first lookup, read-enrich-write loop, source attribution, ambient enrichment, back-linking. Read this before any brain interaction.

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Chronicle · praxstack bundle
Personal journal intelligence that transforms raw, unorganized thoughts into structured diary entries with psychological analysis. Use when the user provides journal entries, diary text, stream-of-consciousness writing, voice memo transcriptions, or asks to process daily thoughts into a structured format. Produces narrative entries, gratitude extraction, multi-level psychological analysis (surface/medium/clinical), health pattern flags, therapeutic micro-actions, and bridge-to-tomorrow planning. Trigger phrases: 'journal entry', 'diary entry', 'process my thoughts', 'Chronicle', 'daily reflection', 'write up my day'.

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Tech Tutor Ren Nakamura Persona · praxstack bundle
Intuition-first tech mentor who makes complex concepts click through visuals, analogies, and the 6-layer explanation framework. Use this skill when the user asks to "explain", "tutor", "teach", "mock interview", or needs intuition regarding DSA, System Design, or AI/ML.

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Backend Pe · praxstack
Distinguished Principal Engineer backend/system architecture skill. Use when the user demands "BackendPE", "Supermode", "Antigravity", or requests high-performance, unlimited-context, world-class backend and distributed systems design. This skill maximizes depth, rigor, and production readiness.

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Cold Start · praxstack
Day-one data bootstrapping for a new brain. Sequences the highest-leverage data sources to go from empty brain to useful brain in one session. Uses ClawVisor for safe credential handling — the agent never holds raw API keys. Covers Gmail import, calendar sync, contacts seeding, X/Twitter archive, conversation imports, and file archives. Use when a user has just finished gbrain setup and asks "now what?"

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Frontend Pe · praxstack
ACTIVATION TRIGGER. Use this skill when the user demands "Ultrafrontend", "High-End UX", "Awwwards Style", or world-class UI design. This skill enforces a design-first workflow with zero-compromise aesthetics.

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Kingmode · praxstack
Principal-engineer routing guidance with three reasoning depths — Default, ULTRATHINK, and KINGMODE. Use when the user explicitly types "ULTRATHINK" or "KINGMODE", asks for "architecture-first" output, requests "deep reasoning", or the task is system design, scalability, reliability, security review, compliance planning, or any production decision where depth beats speed. Covers mode selection, the four-step clarify/decide/implement/validate workflow, non-hallucination discipline, and per-mode output formats. Not for: quick lookups, single-file refactors, or tasks where the user asked for brevity.

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Obsidian CLI · praxstack
Control Obsidian from the terminal using CLI v2 (1.12+). Create, read, append, search files; manage properties, tags, tasks; query bases; use templates; analyze links. Use when performing vault operations, automating note workflows, appending content to notes, managing frontmatter properties, or searching the vault from the command line. Requires Obsidian app to be running.

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Spec Creator · praxstack bundle
Create production-grade SPEC.md files — portable implementation contracts that any AI coding agent can build from without follow-up questions. Use this skill whenever the user wants to write a spec, specification, technical spec, implementation contract, SPEC.md, or service specification for any software task. Also trigger when the user says "spec out", "write a spec for", "create a spec", "define the contract for", or describes a system they want built and needs a thorough specification before implementation. This skill works for backend services, full-stack apps, CLI tools, SDKs, developer tools, and any domain. It produces specs at the level of a principal-engineer-authored portable implementation contract — not a PRD, not an HLD, but the artifact that sits between architecture and code.

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Superimprove · praxstack bundle
Run a bounded, evidence-first audit-fix-review-verify loop on a codebase when the user asks to improve, harden, overhaul, or fix all confirmed defects. Use only with explicit edit authority in a git repository. Do not use for advisory-only reviews, a single narrow bug, or when the worktree is dirty and the owner has not chosen how to preserve it.

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Techtutor · praxstack bundle
Intuition-first technical mentor that makes complex concepts click through analogies, visuals, and a disciplined 6-layer explanation framework (WHY — HOW — VISUALIZE — CODE/MATH — SCALE — CONNECT). Use when the user asks to explain, tutor, teach, or mock-interview on DSA, System Design, Java internals, AI/ML (GenAI, LLMs, RAG, neural networks, transformers), distributed systems, cloud architecture, databases, or any technical topic. Produces layered explanations with Mermaid diagrams, ASCII state tables, working code (not pseudocode), real-world scale references, and targeted check-in questions. Handles comparisons, follow-ups, counterexamples, code review, direct tasks, and system-design mocks. Triggers: 'explain X', 'teach me', 'how does X work', 'tutor me on', 'mock interview', 'intuition for'.

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Idea Capturer · praxstack
Provides a structured system for capturing fleeting thoughts, developing raw ideas into actionable concepts, and organizing your creative thinking.

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Teach Pro Max · praxstack bundle
Teach concepts and skills through adaptive, evidence-oriented tutoring and first-class immersive visualization for quick explanations, focused lessons, and consent-based multi-session courses. Use when the user asks to learn, understand, practice, be quizzed, build intuition, receive Socratic guidance, create an accessible visual lesson, or resume prior learning. Includes progressive hints, cautious mastery evidence, a packaged offline visual lab, 38-tool production routing, review scheduling, durable learner state, evaluation tools, and offline optional adapters.

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Gbrain Advisor · praxstack
Proactive "make the most of gbrain" coaching. Runs `gbrain advisor` on a cadence and pings the user with the top high-leverage actions for their brain: version drift, pending migrations, stalled jobs, low embed coverage, setup smells, and uninstalled brain skills. Read-only; always asks before fixing.

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Daily Task Prep · praxstack
Morning preparation. Calendar lookahead, meeting context loading, open threads from yesterday, active task review. Extends briefing with actionable prep.

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Signal Detector · praxstack
Always-on ambient signal capture. Applies on every substantive inbound message to detect original thinking and entity mentions. Spawn as a cheap sub-agent where the harness supports it; otherwise run detection inline. Aim to never block the main response.

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Company Brainify · praxstack bundle
Extract a sanitized shared team/company brain from a personal brain. Strips internal ratings, compensation, performance assessments, retention and political dynamics from pages, takes, and facts across the full scan scope (people, companies, meetings, dailies, cross-references — not just people/), verifies with grep + retrieval passes, and purges sensitive git history behind the data-loss-gate confirmation card. Also runs as a report-only re-audit on an existing shared brain.

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Blueprint Creator · praxstack bundle
Create exhaustive BLUEPRINT.md files — the implementation bible that expands a SPEC.md into maximum granular detail so an AI coding agent can translate it line-by-line into code with zero interpretation. This skill REQUIRES a SPEC.md to already exist. Use this skill whenever the user wants to create a blueprint, implementation blueprint, detailed spec, "bible" document, or says "create the blueprint", "expand the spec", "make it more detailed", "generate BLUEPRINT.md", or "I need every detail spelled out." Also trigger when the user has a SPEC.md and wants to go deeper before implementation. The Blueprint is the final artifact before code — it takes the portable implementation contract (SPEC.md) and fills in every edge case, validation rule, error message, sequence, and example so nothing is left to judgment. Works for any software domain. If no SPEC.md exists, this skill MUST redirect the user to generate one first using the spec-creator skill.

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Lecture Alchemist · praxstack bundle
Transform raw lecture transcripts (Zoom, YouTube, etc.) into structured, retention-optimized study notes. Use when the user provides a lecture transcript, class recording text, or asks to process/convert lecture notes. Handles WebDev, AI/ML, Web3, DSA, and general tech domains. Produces hierarchical topic breakdowns, cleaned code artifacts, intuition builders, flashcards, spaced repetition plans, and actionable study materials. Trigger phrases: 'process this transcript', 'convert lecture to notes', 'lecture notes', 'transcript to study material', 'Lecture Alchemist'.

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Svg Logo Designer · praxstack bundle
Elite SVG logo design intelligence. Creates professional hand-crafted SVG logos, brand marks, icons, wordmarks, lettermarks, emblems, abstract marks, and visual identities. Uses a rigorous multi-phase discovery interview (2-3 rounds) to extract brand DNA, emotional tone, and design intent before generating. Produces multiple concepts with layout variations, full color systems, design tokens (CSS custom properties, JSON, Figma-ready specs), and optimized SVG using advanced techniques (gradients, masks, filters, blend modes, animations). Self-evaluates every concept against a 7-criterion quality rubric. Structured iterative refinement loop. Use when creating logos, brand marks, icons, symbols, visual identities, wordmarks, lettermarks, emblems, mascot marks, scalable vector branding, brand guidelines, or design systems from logos.

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Backend Pe Cpp · praxstack
Principal-engineer-grade C++ backend design, implementation, and review for performance-critical services, networking, storage, and infrastructure. Covers C++20/23, RAII, ownership, modern concurrency (std::jthread, std::atomic, lock-free where proven), sanitizers, fuzzing, hardening, and C++-specific failure modes (UB, lifetime bugs, data races, false sharing, allocator pressure). Use when designing, building, reviewing, refactoring, profiling, hardening, or debugging C++ backend systems, low-latency services, network daemons, or storage engines. Trigger keywords - C++ backend, C++20, C++23, CMake, low-latency, RAII, smart pointers, sanitizers, ASan UBSan TSan, fuzzing, lock-free, zero-copy, performance review, memory safety review.

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Constellation Team · praxstack bundle
Coordinate a cross-functional star-team workflow (Product Manager, Principal Engineer, Backend, Frontend, QA/Security, DevOps) with mandatory architecture and code-review checkpoints. Use when a request needs end-to-end product delivery, multi-role collaboration, or explicit role-based outputs (PM/PE/Backend/Frontend/QA/DevOps), or when the user asks for "star team", "cross-functional", "full lifecycle", or "multi-role" planning.

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Transcribe Refiner · praxstack
Clean and reconstruct raw auto-generated captions (Zoom, YouTube, Teams, Google Meet, Otter.ai, etc.) into readable, coherent transcripts. Use when the user provides raw caption files (.txt, .vtt, .srt), meeting transcripts with timestamps and speaker tags, or asks to clean up/refine a transcript. Handles: timestamp removal, speaker tag normalization, filler word removal, broken sentence reconstruction, transcription error correction, paragraph formation. Preserves every piece of substantive content while removing noise. Trigger phrases: 'clean this transcript', 'refine captions', 'fix this transcript', 'process Zoom captions', 'clean up meeting notes'.

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Backend Pe Java · praxstack
Principal-engineer-grade Java backend design, implementation, and review. Covers JDK 21 LTS, virtual threads, Spring Boot 3 / Micronaut / Quarkus, reactive vs. imperative, JVM tuning, concurrency primitives, and Java-specific failure modes (connection pool starvation, GC pauses, blocking in reactive, boxing in hot paths). Use when designing, building, reviewing, refactoring, hardening, profiling, or debugging Java or Kotlin backend services. Trigger keywords - Java backend, JVM, Spring Boot, Micronaut, Quarkus, virtual threads, Project Loom, JPA, Hibernate, Kafka Java, JVM tuning, GC tuning, HikariCP, G1 ZGC, Resilience4j. Not for Android work.

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Product Manager · praxstack bundle
Product/program management for software products. Use when defining product strategy, writing PRDs, prioritizing roadmap, running discovery, setting success metrics, managing stakeholders, planning launches, or making build/buy/cut decisions. Covers vision, user research synthesis, RICE/ICE/Kano/MoSCoW prioritization, user stories, acceptance criteria, sprint planning, metrics (North Star, activation, retention, NPS), A/B testing, go-to-market, and business cases. Keywords: PM, product manager, PRD, roadmap, prioritization, RICE, user stories, acceptance criteria, North Star metric, activation, retention, A/B test, launch, stakeholder, JTBD, MVP.

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Super Mode Core · praxstack
Internal loader for principal-engineer domain standards across backend, frontend, and security. Invoked by kingmode (or a calling skill) when a task spans multiple domains and needs the relevant standards loaded together. Does NOT make user-facing mode decisions — that is kingmode's job. Takes an already-selected mode + domain tags and loads the matching domain-standards skills (backend-architecture-standards, frontend-excellence-standards, security-compliance-standards). Triggers only as a downstream loader: kingmode classified a task as multi-domain, a caller asks for "super-mode", or a user typed "SUPER-MODE" to signal cross-domain scope. Not for: single-domain tasks (use the domain skill directly), mode selection or depth routing (use kingmode), frontend-only analysis (use ultrathink-frontend), greenfield frontend workflow (use frontend-pe), or any user-facing depth decision. Pure loader — no mode routing, no user-facing output.

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Cross Agent Handoff · praxstack bundle
Prepare or consume a precise, privacy-safe handoff between agent sessions, harnesses, subagents, CLIs, or humans. Use when work crosses contexts, survives compaction, is delegated, or must be resumed without trusting narrative completion claims.

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Transcript Pipeline · praxstack bundle
This skill should be used when the user asks to "process this transcript", "convert lecture to notes", "run transcript pipeline", "generate class tutorial from Zoom captions", "validate transcript coverage", or "enrich class resources" (Notion/Canva/Drive links) for bootcamp notes.

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Baron Von Markup · praxstack bundle
Markdown architect that transforms raw text, unstructured notes, transcripts, or code output into well-formatted, semantically meaningful Markdown while preserving content integrity. Use when the user provides messy notes, meeting transcripts, API output, script logs, reference material, or inconsistent Markdown and asks to format, clean up, structure, normalize, or document it. Produces hierarchical documents with correct heading levels, code blocks with language tags, tables for key-value data, blockquotes for warnings, TOC when warranted, and reference sections — with zero fact invention or paraphrasing of technical literals. Triggers: 'format this', 'clean this up', 'make this markdown', 'structure this', 'document this', 'Baron von Markup', 'format as README', 'format as markdown'.

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Concept Cartographer · praxstack
Generate visual concept maps, flowcharts, architecture diagrams, and relationship diagrams from structured notes or technical content using Mermaid syntax. Use when the user has lecture notes, study materials, or technical documentation and wants visual diagrams to aid understanding. Produces multiple diagram types: concept hierarchy maps, process flowcharts, architecture diagrams, comparison matrices, timeline diagrams, and mind maps. Trigger phrases: 'create diagrams from notes', 'visualize concepts', 'concept map', 'make flowcharts', 'diagram this', 'visual notes'.

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Conversation Archive · praxstack bundle
Import AI-assistant chat exports (ChatGPT, Claude, Perplexity) and agent session transcripts into the brain as one dated page per conversation under conversations/, validate each page against the native conversation parser, extract facts via the native conversation-facts flow, and keep the archive gap-free with a detect-and-backfill loop. Then answer archive questions: "when did I first discuss X", trace how an idea evolved across past conversations, pull a specific thread.

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Backend Pe Nodejs · praxstack
Principal-engineer-grade guidance for the Node.js runtime itself - event loop, streams, worker threads, cluster, memory, GC, native addons, and runtime-level failure modes. Covers diagnosing event-loop lag, heap leaks, CPU profiling, AsyncLocalStorage, AbortController, and production-grade process lifecycle on Node 20+ LTS or Bun. Use when debugging or tuning Node runtime behavior, investigating latency spikes, memory leaks, throughput regressions, or designing at the runtime level. Trigger keywords - Node.js runtime, event loop, event loop lag, worker threads, cluster, streams backpressure, AsyncLocalStorage, heap snapshot, clinic.js, flamegraph, node --prof, memory leak Node, V8 tuning, AbortController, graceful shutdown Node. Not for language-level concerns (use backend-pe-javascript or backend-pe-typescript).

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Backend Pe Python · praxstack
Principal-engineer-grade Python backend design, implementation, and review. Covers asyncio, FastAPI/Django, SQLAlchemy, Pydantic, type hints, packaging, and Python-specific failure modes (GIL, blocking-in-async, subprocess, multiprocessing). Use when designing, building, reviewing, refactoring, hardening, profiling, or debugging Python services, APIs, workers, and data pipelines in production. Trigger keywords - Python backend, FastAPI, Django, asyncio, SQLAlchemy, Pydantic, uvicorn, gunicorn, aiohttp, Celery, Python service review, Python API design, Python performance, blocking event loop, GIL contention. Not for Python ML/training code (use backend-pe-python-ml) or pure frontend work.

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Principal Engineer · praxstack bundle
Architecture governance, design review, and code-merge gatekeeping for senior/staff/principal-level technical oversight. Use when reviewing architecture proposals, approving or rejecting designs before implementation, gating pull requests before merge, arbitrating technology selection, enforcing cross-service API contracts, or setting quality/security standards for a team. Focuses on approval checkpoints, trade-off analysis, and non-obvious architectural anti-patterns. Not for hands-on implementation (use backend-system-design-expert or language-specific skills), product feature definition, or sprint management.

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Devops Sre Engineer · praxstack bundle
Infrastructure-as-code, CI/CD, Kubernetes, observability, and reliability engineering for production systems. Use when designing or reviewing infrastructure (Terraform/Pulumi), CI/CD pipelines (GitHub Actions/GitLab CI), Kubernetes manifests and Helm charts, monitoring/alerting (Prometheus/Grafana), logging pipelines, SLO/error-budget policy, incident response/postmortems, disaster recovery, or cost optimization. Focuses on reliability patterns, deployment safety, and operational trade-offs. Not for application code (use backend/frontend skills), product requirements, or architectural approval (use principal-engineer).

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Ultrathink Frontend · praxstack
Two-mode frontend architecture skill — Default for concise production-ready UI and ULTRATHINK for exhaustive multi-dimensional analysis. Use when building React/Vue/Svelte components, pages, or interfaces where engineering rigor, intentional minimalism, and library discipline matter. Triggers on "ULTRATHINK", "deep frontend analysis", "architect this UI", "senior frontend review", "accessibility audit", "performance optimize this component", and any frontend task requiring reasoning beyond "make it work". Covers mode routing, the anti-generic design philosophy, UI library discipline (Shadcn/Radix/MUI/Headless UI must be used if present), and the full psychological/technical/accessibility/scalability lens. Not for: design-first greenfield UI (use frontend-pe), generic implementation asks (use the component library), or cross-domain orchestration (use super-mode-core). This is frontend analysis/review depth, not workflow.

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Apex Autonomous Mode · praxstack bundle
Principal-engineer-grade autonomous execution mode for any AI coding agent. Calibrates rigor to task size: one primitive cycle for tiny work, 3-phase contract for small, 10-phase for medium/large. Loops until verified. Keep-or-revert on every change. Writes Actionable Side Information on failures. Escalates through a 6-tier Fallback Matrix. Respects 6 Ambiguity Blockers as the only valid pause reasons. Emits binary acceptance criteria per phase and a structured Final Summary at completion. Use on explicit opt-in via the APEX-ON token, /apex or /autonomous slash commands, auto-task wrapper, or the phrase apply APEX after echo-confirmation. Trigger keywords: APEX, autonomous mode, principal engineer mode, rigorous execution, godel primitives, keep-or-revert, loop-until-verified, ambiguity blocker, fallback matrix, ASI, auto-task, apex-on, /apex, /autonomous. Not for conversational exploration or trivial edits.

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Backend Pe Python Ml · praxstack
Principal-engineer-grade Python ML backend design, implementation, and review - training pipelines, inference services, feature stores, and MLOps. Covers data quality and leakage, reproducibility, evaluation rigor (offline + online), model monitoring for drift, GPU efficiency, inference batching, and ML-specific failure modes (label leakage, distribution shift, train-serve skew, silent model regressions). Use when designing, building, reviewing, or debugging Python ML services, training pipelines, or MLOps systems. Trigger keywords - ML pipeline, model training, model serving, inference service, MLOps, PyTorch production, feature store, model registry, MLflow, data drift, model evaluation, train-serve skew, label leakage, GPU inference, batch scoring, model rollout. Not for generic Python backend work (use backend-pe-python).

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QA Security Engineer · praxstack bundle
Quality assurance plus security engineering for software products. Use when designing test strategy, writing test plans, reviewing code for security, running SAST/DAST, doing penetration tests, managing vulnerabilities, validating compliance (GDPR/SOC2/PCI/HIPAA), responding to incidents, or hardening APIs. Covers test pyramid, unit/integration/E2E, performance/load testing, OWASP Top 10, authentication/authorization review, encryption, secrets hygiene, logging/monitoring, and post-incident forensics. Keywords: QA, testing, test automation, security, SAST, DAST, penetration test, pentest, OWASP, vulnerability, CVE, CVSS, GDPR, SOC2, PCI, HIPAA, compliance, incident response, Cypress, Playwright, k6, Burp, ZAP, Semgrep, Snyk.

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Ultra Reasoning Operator · praxstack bundle
Scope-calibrated ultra-rigor workflow for hard reasoning, high-risk code changes, architecture decisions, debugging with multiple plausible root causes, security-sensitive work, and user requests like "ultra reasoning", "think harder", "verify everything", "adversarial review", "war room", "deep check", "paranoid verifier", or "no hallucinations". Use to force evidence-first planning, assumption tracking, hypothesis falsification, adversarial self-review, verification gates, and clear uncertainty without overloading trivial tasks.

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Backend Pe Javascript · praxstack
Principal-engineer-grade JavaScript (non-TypeScript) backend design, implementation, and review. Covers Node 20+ LTS / Bun, modern ESM, runtime validation (Zod/Ajv), JSDoc types, Fastify/Hono/Express, Prisma/Drizzle, and JavaScript-specific failure modes (untyped boundaries, prototype pollution, async leaks, event-loop blocking). Use when designing, building, reviewing, refactoring, hardening, or debugging plain JavaScript backend services where adopting TypeScript is not an option. Trigger keywords - JavaScript backend, Node.js service, Fastify, Hono, ESM, Bun JavaScript, JSDoc types, Zod validation, Ajv, plain JS. Not for TypeScript code (use backend-pe-typescript), Node runtime internals (use backend-pe-nodejs), or frontend work.

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Backend Pe Typescript · praxstack
Principal-engineer-grade TypeScript backend design, implementation, and review. Covers strict tsconfig, Zod schemas, Fastify/NestJS/tRPC/Hono, Prisma/Drizzle, ESM, Bun/Node 20 LTS runtimes, and TypeScript-specific failure modes (any leakage, narrow-type erosion, module resolution). Use when designing, building, reviewing, refactoring, hardening, or debugging TypeScript services and APIs. Trigger keywords - TypeScript backend, tsconfig strict, Zod, Fastify, NestJS, tRPC, Hono, Prisma, Drizzle, Bun backend, Node TypeScript, TS review, TS performance, type safety review. Not for TS frontend work, pure Node runtime internals (use backend-pe-nodejs), or plain JavaScript (use backend-pe-javascript).

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Autonomous Orchestrion · praxstack bundle
Host-neutral autonomous software work protocol. Use this when a human gives any non-trivial task and expects the agent to own discovery, planning, council review, execution, verification, documentation, and handoff without constant permission requests. Coordinates Superpowers, gstack, Matt Pocock skills, llm-council-plus, MCPs, local tools, and fallback reasoning across Claude Code, Codex, OpenCode, Hermes, OpenClaw, Cline, KiloCode, Antigravity-style IDE agents, Cursor, Windsurf, Aider, Augment, Gemini CLI, Copilot-like agents, or unknown hosts.

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Frontend Uiux Designer · praxstack bundle
Frontend engineering plus UI/UX design for production interfaces. Use when building, designing, or reviewing web UIs, components, design systems, accessibility, responsive layouts, or visual hierarchy. Covers aesthetic direction, typography, color, motion, interaction states, WCAG compliance, and framework selection (React/Vue/Svelte, Tailwind/CSS-in-JS, Framer Motion/GSAP). Keywords: UI, UX, frontend, design, component, accessibility, a11y, WCAG, responsive, typography, color palette, motion, animation, design system, design tokens, Figma handoff, Core Web Vitals, visual design, interaction design. Not for: greenfield design-led implementation (use frontend-pe), pure aesthetic taste review (use frontend-design-excellence), or super-mode orchestration (use frontend-excellence-standards). This is the cross-functional UI/UX role in constellation-team workflows.

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Professor Alex Interview · praxstack bundle
FAANG and HFT interview mentor with a Principal Engineer + quantitative analytics background. Use when preparing for coding, system design, behavioral, or quantitative finance interviews at Google, Meta, Amazon, Apple, Microsoft, Netflix, Uber, Citadel, Two Sigma, Jump Trading, Tower Research, DRW, Hudson River Trading, or Virtu Financial. Defaults to guided-discovery skill-building (5 levels: clarifying questions — solution direction — methodological hints — implementation guidance — complete solution) with anti-gaming safeguards, and switches to full Solution Mode only on explicit command or verified time pressure. Covers DSA, system design, low-latency C++, concurrency, probability, statistics, derivatives pricing, portfolio theory, market microstructure, and behavioral STAR-framework prep. Triggers: 'interview prep', 'mock interview', 'FAANG prep', 'HFT prep', 'Professor Alex', 'SOLUTION:', 'GUIDE:', 'TIMELINE:'.

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Frontend Design Excellence · praxstack
Create distinctive, production-grade frontend interfaces that reject generic AI aesthetics. Use when building a component, page, landing, marketing site, portfolio, or any UI where visual distinctiveness matters. Triggers on "design a UI", "build a landing page", "make this look better", "avoid AI slop", "distinctive design", "bespoke aesthetic", "visual identity". Covers aesthetic commitment, typography discipline, bold color palettes, purposeful motion, asymmetric layout, and atmospheric backgrounds. Not for: pure layout fixes, component library wrapper work, tasks that explicitly require template-matching, engineering workflow (use frontend-pe), cross-functional role work (use frontend-uiux-designer), or super-mode orchestration (use frontend-excellence-standards). This is aesthetic commitment discipline, not process.

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Backend System Design Expert · praxstack bundle
Senior backend and system design expertise for API contracts, database architecture, microservice boundaries, distributed systems, scalability, caching, and messaging. Use when designing or reviewing backend systems, picking between REST/GraphQL/gRPC, modeling schemas, choosing consistency models, designing sharding or partitioning, selecting caching strategies, or architecting event-driven flows. Focuses on decision trees and trade-offs, not language-specific implementation. Not for frontend work, deployment/SRE (use devops-sre-engineer), or product discovery.

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Frontend Excellence Standards · praxstack
Principal-engineer standards reference for frontend UI, aesthetics, accessibility, and performance. Use when super-mode-core loads this for frontend-heavy work, or when a skill needs the canonical frontend discipline without owning the rules. Triggers on "build a UI", "design a page", "accessibility audit", "improve frontend performance", "choose typography", "design tokens", "component library discipline", "motion design", "WCAG". Thin dispatch skill — the actual rules live in the canonical frontend-pe/references/design-rules.md; this skill wraps them with a quality-gate checklist for super-mode orchestration. Not for: standalone user invocation (use frontend-pe, frontend-uiux-designer, or ultrathink-frontend depending on scope). This is an internal domain reference loaded by super-mode-core.

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Security Compliance Standards · praxstack
Principal-engineer standards for security, privacy, and compliance across the application stack. Use when designing or reviewing authentication, authorization, secret handling, input validation, data protection, audit logging, threat modeling, or compliance-bounded systems. Triggers on "threat model", "auth design", "OAuth", "OIDC", "secrets management", "input validation", "SAST", "DAST", "OWASP", "data retention", "privacy review", "PII handling", "audit log", "compliance". Covers threat modeling, least privilege, authn/authz patterns, secret management, encryption in transit and at rest, vulnerability management, privacy and data minimization, and audit logging. Loaded by super-mode-core for security-critical work.

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Backend Principle Eng Cpp Pro Max · praxstack bundle
Principal backend engineering intelligence for C++ systems and performance-critical services. Actions: plan, design, build, implement, review, fix, optimize, refactor, debug, secure, scale backend code and architectures. Focus: correctness, memory safety, latency, reliability, observability, scalability, operability.

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Backend Architecture Standards · praxstack
Principal-engineer standards for backend services, APIs, data modeling, distributed systems, and reliability. Use when building or reviewing REST/GraphQL/gRPC APIs, database schemas, service boundaries, caching strategies, messaging, observability, or scaling patterns. Triggers on "design an API", "database schema", "service architecture", "distributed system", "caching strategy", "rate limit", "reliability pattern", "migration plan", "message queue", "SLI/SLO", and backend production reviews. Covers API disciplines, data modeling, scaling patterns, reliability patterns, DevOps and infra, data storage, observability, and performance. Loaded by super-mode-core for backend-heavy work.

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Backend Principle Eng Java Pro Max · praxstack bundle
Principal backend engineering intelligence for Java services and distributed systems. Actions: plan, design, build, implement, review, fix, optimize, refactor, debug, secure, scale backend code and architectures. Focus: correctness, reliability, performance, security, observability, scalability, operability, cost.

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Coding Agent Leadership Principles · praxstack bundle
Set the operating floor for non-trivial coding, debugging, refactoring, and infrastructure work: own outcomes, investigate mechanisms, preserve user work, minimize blast radius, verify against reality, surface every defect, and distinguish reversible execution from irreversible actions that require approval.

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Gabriel Petersson Topdown Mentor · praxstack bundle
Recursive gap-filling mentor for engineers rebuilding technical depth through top-down, problem-first learning. Use when a learner wants deep intuitive understanding (not just answers) for DSA, Java internals, System Design, or design principles — especially via real projects like CodeCrafters, LeetCode, or code review. Runs a 5-step Recursive Gap-Filling Loop (identify the shape — probe current understanding — drill down recursively with mandatory visualizations — verify click through teach-back — connect to bigger picture), supports 5 response modes (EXPLORE default, UNSTUCK, REVIEW, SOLUTION, ESCALATE), and demands intermediate-state visualization for every algorithm, data structure, or system discussion. Triggers: 'help me understand', 'drill into', 'teach it back', 'make this click', 'top-down learning', 'recursive gap-filling', 'CodeCrafters stage', 'REVIEW:', 'SOLUTION:'.

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Backend Principle Eng Nodejs Pro Max · praxstack bundle
Principal backend engineering intelligence for Node.js runtime systems. Actions: plan, design, build, implement, review, fix, optimize, refactor, debug, secure, scale backend code and architectures. Focus: correctness, reliability, performance, security, observability, scalability, operability, cost.

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Backend Principle Eng Python Pro Max · praxstack bundle
Principal backend engineering intelligence for Python services and data systems. Actions: plan, design, build, implement, review, fix, optimize, refactor, debug, secure, scale backend code and architectures. Focus: correctness, reliability, performance, security, observability, scalability, operability, cost.

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Mental Health Screening Companion · praxstack bundle
Mental-health screening and journaling companion. NOT a therapist or clinician. Supports self-reflection with validated screeners (PHQ-9, GAD-7, ASRS v1.1 Part A, C-SSRS) scored for personal awareness only, psychoeducation (CBT/DBT/ACT self-help), consent-based check-in pathways (crisis-first / brief / structured), and a session-journal template. Use when the user explicitly asks for a self-reflection check-in, wants to run a validated screener for personal tracking, needs psychoeducation on mood/ADHD/anxiety, or wants structured journaling around MDD / adult ADHD / comorbid anxiety. Always screens for suicidal ideation; surfaces 988 (US) and jurisdiction-matched crisis resources. Scores are for personal reflection, NOT clinical data. Keywords: mental health, screening, self-reflection, journaling, MDD, depression, adult ADHD, anxiety, CBT, DBT, ACT, PHQ-9, GAD-7, ASRS, C-SSRS, 988, crisis, psychoeducation.

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Orchestrion Universal Agent Router · praxstack bundle
Universal host-neutral agent orchestration skill. Use this at the start of any non-trivial task to discover the current agent host, load the right installed skills, route ambiguous human requests through planning/TDD/debugging/review/QA/council gates, create TODOs, and prevent false completion. Designed to coordinate Superpowers, gstack, Matt Pocock skills, and llm-council-plus without assuming Claude, Codex, OpenCode, Hermes, OpenClaw, Cline, KiloCode, Antigravity, or any other specific agent.

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Prax Teach V2 · praxstack bundle
Teach a concept or skill through adaptive, evidence-oriented tutoring that works for quick explanations, focused lessons, and persistent multi-session courses. Use when the user asks to learn, understand, practice, be quizzed, build intuition, receive Socratic guidance, create an accessible lesson, or resume and review prior learning. Do not use for ordinary task completion unless teaching is requested or clearly the goal.

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Backend Principle Eng Python Ml Pro Max · praxstack bundle
Principal backend engineering intelligence for Python AI/ML systems. Actions: plan, design, build, implement, review, fix, optimize, refactor, debug, secure, scale ML services and pipelines. Focus: data quality, reproducibility, reliability, performance, security, observability, model evaluation, MLOps.

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Backend Principle Eng Javascript Pro Max · praxstack bundle
Principal backend engineering intelligence for JavaScript services. Actions: plan, design, build, implement, review, fix, optimize, refactor, debug, secure, scale backend code and architectures. Focus: correctness, reliability, performance, security, observability, scalability, operability, cost.

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Backend Principle Eng Typescript Pro Max · praxstack bundle
Principal backend engineering intelligence for TypeScript services. Actions: plan, design, build, implement, review, fix, optimize, refactor, debug, secure, scale backend code and architectures. Focus: correctness, reliability, performance, security, observability, scalability, operability, cost.

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Openspec Explore · praxstack
Enter explore mode - a thinking partner for exploring ideas, investigating problems, and clarifying requirements. Use when the user wants to think through something before or during a change.

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Openspec Propose · praxstack
Propose a new change with all artifacts generated in one step. Use when the user wants to quickly describe what they want to build and get a complete proposal with design, specs, and tasks ready for implementation.

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Openspec Sync Specs · praxstack
Sync delta specs from a change to main specs. Use when the user wants to update main specs with changes from a delta spec, without archiving the change.

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Openspec Apply Change · praxstack
Implement tasks from an OpenSpec change. Use when the user wants to start implementing, continue implementation, or work through tasks.

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Openspec Update Change · praxstack
Update an OpenSpec change by revising its existing planning artifacts and keeping them coherent with one another. Use when the user wants to revise a change's plan, fold new decisions into it, or reconcile its artifacts after an edit. Never edits code.

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Openspec Archive Change · praxstack
Archive a completed change in the experimental workflow. Use when the user wants to finalize and archive a change after implementation is complete.

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84 published skills