maintain-documentation

Documents

Keeps project documentation aligned with implementation. Use when adding a new feature, changing architecture, adding a module or store slice, adding an implementation (e.g. SSE/Kerberos-like), or when the user asks to update docs, align documentation with code, or keep docs in sync.

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Source SKILL.md: https://github.com/glassflow/clickhouse-etl/blob/HEAD/ui/.cursor/skills/maintain-documentation/SKILL.md

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Maintain Documentation

Apply this skill when implementing a new feature or changing behavior so that both docs/ (canonical truth) and .cursor/ (rules and summaries) stay accurate and discoverable.

Where documentation lives

Map: .cursor/index.mdc (rules + architecture list), docs/README.md (docs index), .cursor/CONTEXT_MAP.md (what to load per area).
Ownership: docs/ owns full architecture, design system, module behavior, implementations. .cursor/ owns operational rules and summaries + links only. Rule: .cursor/architecture/* must not contain unique facts that do not exist in docs/; add to docs first, then summarize or link from .cursor.

Quick reference

Layer	Canonical (add here first)	.cursor (summaries + links only)
Full architecture	`docs/architecture/ARCHITECTURE_OVERVIEW.md`	`.cursor/architecture/ARCHITECTURE_OVERVIEW.md` (modules/slices/critical flows lists + link to docs)
Design system / tokens	`docs/architecture/DESIGN_SYSTEM.md`	`.cursor/styling.mdc`, `.cursor/architecture/THEMING_ARCHITECTURE.md` (point to docs)
Module behavior	`docs/modules/<module>/` (e.g. one or more `.md` per feature)	`.cursor/architecture/MODULE_ARCHITECTURE.md` (one-line entry), CONTEXT_MAP row
Implementations (SSE, auth, store mode, etc.)	`docs/implementations/<name>.md`	`.cursor/architecture/IMPLEMENTATIONS_INDEX.md` (row + constraint/risk + link)
State / store	Reflected in `docs/architecture/ARCHITECTURE_OVERVIEW.md` (store section)	`.cursor/architecture/STATE_MANAGEMENT.md`, `.cursor/state-management.mdc` (slice names), ARCHITECTURE_OVERVIEW store list

Workflow by change type

New feature or new module

Canonical: Add or update docs/modules/<module-name>/ with at least one doc (e.g. MODULE_NAME.md): component hierarchy, key files, state/API, types. Follow existing module docs (e.g. docs/modules/kafka/, docs/modules/notifications/) for structure.
.cursor: Add one line to .cursor/architecture/MODULE_ARCHITECTURE.md under "Notable modules". Add the module to the "Modules" list in .cursor/architecture/ARCHITECTURE_OVERVIEW.md. Add a row to .cursor/CONTEXT_MAP.md ("When you work on…" → "Load first"). Add the module to the "Modules" table in docs/README.md if not already there.
Vocabulary: If the feature involves "notifications", use notification center for the product feature (panel, store, channels) and in-app notifications for the notify() toast/banner/modal system; see .cursor/architecture/NOTIFICATION_CENTER.md vs IN_APP_NOTIFICATIONS.md.
Design/UX alignment: Apply design principles; see the apply-design-principles skill and docs/design/DESIGN_PRINCIPLES.md.

New store slice

Canonical: Update docs/architecture/ARCHITECTURE_OVERVIEW.md (store structure / Service responsibilities or equivalent).
.cursor: Add the slice to the "Store composition" and "Domain slices" sections in .cursor/architecture/STATE_MANAGEMENT.md. Add the slice name to the list in .cursor/state-management.mdc. Add the slice to the "Store slices" list in .cursor/architecture/ARCHITECTURE_OVERVIEW.md. If the slice participates in pipeline hydration, add it to the Hydration section in STATE_MANAGEMENT.md and to hydrateSection options.

New implementation (non-obvious behavior)

When adding something that looks like normal UI but has specific constraints (e.g. a new streaming mechanism, auth path, or feature-flag–driven behavior):

Canonical: Add docs/implementations/<NAME>.md (overview, architecture, key files, constraints/risks).
.cursor: Add a row to .cursor/architecture/IMPLEMENTATIONS_INDEX.md with topic, short description, constraint/risk one-liner, and link to the doc. Optionally add the flow to the "Critical flows index" in .cursor/architecture/ARCHITECTURE_OVERVIEW.md.

Styling / design system changes

Canonical: All new tokens, card variants, and usage live in docs/architecture/DESIGN_SYSTEM.md. Do not add token or variant definitions only in .cursor.
.cursor: Keep .cursor/styling.mdc and .cursor/architecture/THEMING_ARCHITECTURE.md as directives and summaries that point to DESIGN_SYSTEM.md; no new unique token names or values only in .cursor.

Architecture or data-flow change

Canonical: Update docs/architecture/ARCHITECTURE_OVERVIEW.md (tech stack, directory tree, data flows, store, API, invariants as needed).
.cursor: Update the snapshot in .cursor/architecture/ARCHITECTURE_OVERVIEW.md: ensure the modules list, store slices list, and "Critical flows index" match reality and link to docs. Do not add new architectural facts only in .cursor.

Checklist before finishing

Every new fact or detailed behavior is recorded in docs/ first (appropriate file under docs/architecture/, docs/modules/, or docs/implementations/).
.cursor/architecture/* only summarizes or links; no unique facts that exist only there.
If a new module or area was added: CONTEXT_MAP.md has a row; docs/README.md and MODULE_ARCHITECTURE / ARCHITECTURE_OVERVIEW lists are updated.
If a new implementation or hidden constraint was added: IMPLEMENTATIONS_INDEX.md has a row with constraint/risk and link.
Naming: "Notification center" vs "in-app notifications" used consistently; no ambiguous "notifications" when both could apply.

Key file paths (from repo root `ui/`)

Rules and ownership: .cursor/index.mdc
Docs index: docs/README.md
Context map: .cursor/CONTEXT_MAP.md
Architecture snapshot: .cursor/architecture/ARCHITECTURE_OVERVIEW.md
Full architecture: docs/architecture/ARCHITECTURE_OVERVIEW.md
Design system: docs/architecture/DESIGN_SYSTEM.md
Implementations index: .cursor/architecture/IMPLEMENTATIONS_INDEX.md
Module list: .cursor/architecture/MODULE_ARCHITECTURE.md
State/slices: .cursor/architecture/STATE_MANAGEMENT.md, .cursor/state-management.mdc