Claude-Code-Workflow/.claude/commands/workflow/session/sync.md

name, description, argument-hint, allowed-tools

name	description	argument-hint	allowed-tools
sync	Quick-sync session work to project-guidelines and project-tech	[-y|--yes] ["what was done"]	Bash(*), Read(*), Write(*), Edit(*)

Session Sync (/workflow:session:sync)

One-shot update project-guidelines.json + project-tech.json from current session context.

Design: Scan context → extract → write. No interactive wizards.

Auto Mode

--yes or -y: Skip confirmation, auto-write both files.

Process

Step 1: Gather Context
   ├─ git diff --stat HEAD~3..HEAD (recent changes)
   ├─ Active session folder (.workflow/.lite-plan/*) if exists
   └─ User summary ($ARGUMENTS or auto-generate from git log)

Step 2: Extract Updates
   ├─ Guidelines: conventions / constraints / learnings
   └─ Tech: development_index entry

Step 3: Preview & Confirm (skip if --yes)

Step 4: Write both files

Step 5: One-line confirmation

Step 1: Gather Context

const autoYes = $ARGUMENTS.includes('--yes') || $ARGUMENTS.includes('-y')
const userSummary = $ARGUMENTS.replace(/--yes|-y/g, '').trim()

// Recent changes
const gitStat = Bash('git diff --stat HEAD~3..HEAD 2>/dev/null || git diff --stat HEAD 2>/dev/null')
const gitLog = Bash('git log --oneline -5')

// Active session (optional)
const sessionFolders = Glob('.workflow/.lite-plan/*/plan.json')
let sessionContext = null
if (sessionFolders.length > 0) {
  const latest = sessionFolders[sessionFolders.length - 1]
  sessionContext = JSON.parse(Read(latest))
}

// Build summary
const summary = userSummary
  || sessionContext?.summary
  || gitLog.split('\n')[0].replace(/^[a-f0-9]+ /, '')

Step 2: Extract Updates

Analyze context and produce two update payloads. Use LLM reasoning (current agent) — no CLI calls.

// ── Guidelines extraction ──
// Scan git diff + session for:
//   - New patterns adopted → convention
//   - Restrictions discovered → constraint
//   - Surprises / gotchas → learning
//
// Output: array of { type, category, text }
// RULE: Only extract genuinely reusable insights. Skip trivial/obvious items.
// RULE: Deduplicate against existing guidelines before adding.

const existingGuidelines = JSON.parse(Read('.workflow/project-guidelines.json'))
const guidelineUpdates = [] // populated by agent analysis

// ── Tech extraction ──
// Build one development_index entry from session work

function detectCategory(text) {
  text = text.toLowerCase()
  if (/\b(fix|bug|error|crash)\b/.test(text)) return 'bugfix'
  if (/\b(refactor|cleanup|reorganize)\b/.test(text)) return 'refactor'
  if (/\b(doc|readme|comment)\b/.test(text)) return 'docs'
  if (/\b(add|new|create|implement)\b/.test(text)) return 'feature'
  return 'enhancement'
}

function detectSubFeature(gitStat) {
  // Most-changed directory from git diff --stat
  const dirs = gitStat.match(/\S+\//g) || []
  const counts = {}
  dirs.forEach(d => {
    const seg = d.split('/').filter(Boolean).slice(-2, -1)[0] || 'general'
    counts[seg] = (counts[seg] || 0) + 1
  })
  return Object.entries(counts).sort((a, b) => b[1] - a[1])[0]?.[0] || 'general'
}

const techEntry = {
  title: summary.slice(0, 60),
  sub_feature: detectSubFeature(gitStat),
  date: new Date().toISOString().split('T')[0],
  description: summary.slice(0, 100),
  status: 'completed',
  session_id: sessionContext ? sessionFolders[sessionFolders.length - 1].match(/lite-plan\/([^/]+)/)?.[1] : null
}

Step 3: Preview & Confirm

// Show preview
console.log(`
── Sync Preview ──

Guidelines (${guidelineUpdates.length} items):
${guidelineUpdates.map(g => `  [${g.type}/${g.category}] ${g.text}`).join('\n') || '  (none)'}

Tech [${detectCategory(summary)}]:
  ${techEntry.title}

Target files:
  .workflow/project-guidelines.json
  .workflow/project-tech.json
`)

if (!autoYes) {
  const confirm = AskUserQuestion("Apply these updates? (modify/skip items if needed)")
  // User can say "skip guidelines" or "change category to bugfix" etc.
}

Step 4: Write

// ── Update project-guidelines.json ──
if (guidelineUpdates.length > 0) {
  const guidelines = JSON.parse(Read('.workflow/project-guidelines.json'))

  for (const g of guidelineUpdates) {
    if (g.type === 'learning') {
      // Deduplicate by insight text
      if (!guidelines.learnings.some(l => l.insight === g.text)) {
        guidelines.learnings.push({
          date: new Date().toISOString().split('T')[0],
          session_id: techEntry.session_id,
          insight: g.text,
          category: g.category
        })
      }
    } else {
      // convention or constraint
      const section = g.type === 'convention' ? 'conventions' : 'constraints'
      if (!guidelines[section][g.category]) guidelines[section][g.category] = []
      if (!guidelines[section][g.category].includes(g.text)) {
        guidelines[section][g.category].push(g.text)
      }
    }
  }

  guidelines._metadata.updated_at = new Date().toISOString()
  Write('.workflow/project-guidelines.json', JSON.stringify(guidelines, null, 2))
}

// ── Update project-tech.json ──
const techPath = '.workflow/project-tech.json'
const tech = JSON.parse(Read(techPath))

if (!tech.development_index) {
  tech.development_index = { feature: [], enhancement: [], bugfix: [], refactor: [], docs: [] }
}

const category = detectCategory(summary)
tech.development_index[category].push(techEntry)
tech._metadata.last_updated = new Date().toISOString()

Write(techPath, JSON.stringify(tech, null, 2))

Step 5: Confirm

✓ Synced: ${guidelineUpdates.length} guidelines + 1 tech entry [${category}]

Error Handling

Error	Resolution
File missing	Create scaffold (same as solidify Step 1)
No git history	Use user summary or session context only
No meaningful updates	Skip guidelines, still add tech entry
Duplicate entry	Skip silently (dedup check in Step 4)