sync-figma-token

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SKILL.md

---
name: sync-figma-token
description: "Sync design tokens between code and Figma variables with strict drift reporting, mandatory approval gate, safe delta apply, and persisted reports."
disable-model-invocation: true
metadata:
  mcp-server: figma, figma-staging
---

# sync-figma-token

Use this skill for token parity workflows (code tokens vs Figma variables).

**MANDATORY prerequisite**: load `figma-use` before every `use_figma` call.

## Non-negotiable safety rule

After producing dry-run output, you MUST STOP and ask for approval.

- Do NOT run any write `use_figma` calls in the same turn as dry-run output.
- Ask a normal confirmation question (example: "Apply these changes? (yes/no)").
- Only proceed on explicit affirmative approval.
- If the response is unclear or negative, do not apply writes.

## Standard source formats (required)

Prefer real token sources in this order:
1. Design Tokens JSON (`tokens.json`, `tokens/*.json`, DTCG-style)
2. Style Dictionary input JSON
3. Platform theme sources (Compose/Kotlin/TS) only when JSON source is unavailable

If source format is non-standard, explicitly state assumptions in dry-run output.

## Required policies before writes

- `direction`: `code_to_figma` (default), `figma_to_code`, `bidirectional`
- `deletePolicy`: default `archive_only` (NOT delete)
- `conflictPolicy`: `prefer_code`, `prefer_figma`, `manual_review`
- `namingPolicy`: token key normalization strategy
- `modePolicy`: code mode <-> Figma mode mapping

Never delete by default. Deletion requires explicit user instruction.

## Normalization rules

Normalize both sides to canonical rows:
- `key` (canonical token name)
- `type` (`COLOR`, `FLOAT`, `STRING`, `BOOLEAN`)
- `modeValues` (light/dark/etc.)
- `aliasTarget`
- `scopes`
- `codeSyntax`

Name normalization examples:
- `color.bg.primary` <-> `color/bg/primary`
- `Neutral10` <-> `Neutral/10` only if explicitly mapped by naming policy

## Value validation (required)

Dry-run must validate values, not only presence/type.

- COLOR: compare RGBA with tolerance `epsilon = 0.0001`
- FLOAT: strict numeric comparison unless tolerance is configured
- STRING/BOOLEAN: strict equality
- Aliases: compare canonical alias targets

## Drift categories

Each drift item must include one of:
- `missing_in_figma`
- `missing_in_code`
- `value_mismatch`
- `alias_mismatch`
- `type_mismatch`
- `mode_mismatch`
- `scope_mismatch`
- `code_syntax_mismatch`
- `broken_alias`

## Dry-run output format

Always return:

1) Headline summary:
```json
{
  "create": 0,
  "update": 0,
  "aliasFix": 0,
  "scopeFix": 0,
  "syntaxFix": 0,
  "archive": 0,
  "delete": 0
}
```

2) Detailed drift list with token keys and before/after values.

Then ask:

`Dry-run complete. Apply these changes? (yes/no)`

## Report persistence (required)

Persist report JSON every run:
- `/tmp/sync-figma-token-dry-run-{runId}.json`
- `/tmp/sync-figma-token-final-{runId}.json`

If file persistence fails, mention that explicitly in output.

## Conflict handling

When conflicting data is found (type/mode/alias ambiguity):
- If `conflictPolicy=manual_review`, list conflicts and STOP.
- If `conflictPolicy=prefer_code`, update Figma to source values/types.
- If `conflictPolicy=prefer_figma`, keep Figma and emit drift as informational.

## Apply order

Apply deltas in this order:
1. Ensure collections/modes
2. Create missing primitives
3. Create/update semantic aliases
4. Apply value updates
5. Apply scopes and code syntax
6. Archive stale tokens per `deletePolicy`

Never parallelize write `use_figma` calls.

## Success condition

After apply, run a fresh diff.
Success = unresolved drift is zero, or only explicitly approved exceptions remain.