epoch

name	epoch
display_name	Epoch DVCS Skill
description	Use, extend, test, and integrate Epoch's TypeScript DVCS, CLI, WASM, and platform packages.
version	0.1.0
license	MIT
entrypoint	SKILL.md
permissions	[]
compatibility	["claude","github-copilot","open-agent"]

Epoch DVCS Skill

Epoch is an event-driven, offline-first DVCS with signed immutable events, content-addressed storage, first-class repository creation and signed versions, CRDT-backed entity merging, a Node CLI, WASM-facing exports, React integration helpers, a headless Epoch.Platform.Core / Epoch.Platform.Sdk layer, and separate platform/community web-app packages. Use this skill when an agent needs to understand how to operate Epoch, integrate it into applications, extend repository or platform behavior, or contribute changes safely.

This file is intentionally a compact wiki index. Read only the reference page relevant to the task to minimize context usage.

When to use this skill

• Building or debugging integrations with @epoch/core, @epoch/cli, @epoch/wasm, or @epoch/wasm-react.
• Building or debugging integrations with @epoch/platform-core, @epoch/platform-sdk, @epoch/platform-web, @epoch/community-api, @epoch/community-core, @epoch/community-cli, and @epoch/community-web.
• Writing automation that creates repositories, pushes assets, records files, creates/materializes versions, appends CRDT operations, verifies repositories, syncs peers, or imports/exports Git repositories.
• Updating Epoch source code, tests, quality gates, or documentation.
• Explaining Epoch concepts to project consumers.

Required contribution gates

Before proposing source changes, run the project gates documented in Quality Gates: docs check, linting, typechecking, tests, coverage, and the combined verification command.

For design, behavior, workflow, CLI, SDK, WASM, React, hook, or agent-skill changes, follow Documentation Freshness and update public docs in the same change.

Reference index

Reference	Use it for
Core SDK	Repository lifecycle, event log, CRDT operations, hooks, actors, Git-compatible core exports, and Epoch.Platform Core/SDK/Community/Web foundation.
CLI	Running epoch and epoch-git, repository commands, views, policy events, import/export, and verification.
WASM	Browser/worker-safe exports, CRDT helpers, and unsupported native Git behavior.
Platform Packages	Separate Platform Web and Epoch Community API/Core/CLI/Web responsibilities and deployment boundary.
Community Human-Centered Design	Community design thinking, user-centric design, GitHub open-source contributor persona, pain points, and human considerations.
Persona Feature Matrix	Persona, journey, pain point, trust, degraded-state, and validation mapping for every executable feature spec.
Executable Feature Scenario Inventory	Scenario-level records for every executable Gherkin scenario, persona tag, rule context, and examples count.
Visual Design System	Epoch Community tokens, component rules, accessibility guardrails, and visual direction.
Quality Gates	Required TDD, lint, typecheck, test, coverage, and CI expectations.
Documentation Freshness	Required README, docs index, ADR, feature, SDK, CLI, WASM, and skill-reference updates.
SDLC Subagent	Codex subagent checklist for enforcing feature-first TDD and the Epoch test trophy.
Documentation Index	Public wiki index for architecture, CLI, SDK, features, operations, and ADRs.
Architecture	Full design model, data structures, extension surfaces, and system comparisons.
CLI Docs	Public source-checkout shorthand, installed CLI usage, and command reference.

Quick orientation

• Workspace packages live in packages/Epoch.Core, packages/Epoch.CLI, packages/Epoch.WASM, packages/Epoch.WASM.React, packages/Epoch.Platform.Core, packages/Epoch.Platform.Sdk, packages/Epoch.Platform.Web, packages/Epoch.Community.API, packages/Epoch.Community.Core, packages/Epoch.Community.CLI, and packages/Epoch.Community.Web.
• Epoch.Platform.Web is only the Epoch hosting control plane; Epoch.Community.Web is registered with Web through a deployable app descriptor, while Community API behavior lives in Epoch.Community.API and Web/CLI consume Epoch.Community.Core. Community Web site releases should use materializeCommunityWebSiteWithEpoch() so the static site is built from signed Epoch branch, merge, version, and rollback evidence.
• Community site work uses design thinking, user-centric design, and human-centered design by default. Start from a GitHub open-source contributor persona, add or update persona-tagged product scenarios under features/ when user-visible behavior changes, document the design-thinking stage, user-centric success criteria, and pain point, and account for trust, degraded state, security, privacy, cost, accessibility, moderation, and portability before adding features.
• Personas are users in real scenarios, not features. Never create persona_*, *_persona_*, *_e2e_journeys, or human-centered-design feature files, and never add scenario outlines whose only purpose is proving a matrix row exists.
• Keep agent instructions, test procedures, evidence recording, persona-matrix audits, and repository governance out of Gherkin feature files.
• Every executable feature spec must stay listed in docs/features.md, docs/feature-scenario-inventory.md, and docs/persona-feature-matrix.md; undocumented specs or unrecorded scenarios should fail the persona feature-model unit test.
• Feature specifications live in features/; step definitions and lower-level tests live in test/.
• Build output is generated into dist/ directories and should not be committed.
• Public behavior, architecture, design decisions, and agent workflows should be documented in the docs index, ADRs, feature registry, and relevant skill reference when they change.