[rig-claude] Improve Claude dynamic-workflow compatibility for rig

[github-actions]

Compatibility gap addressed

call.workflow(child, args) — the rig equivalent of Claude dynamic-workflow's workflow(ref, args) — had no dedicated sample. Every other Claude dynamic-workflow primitive already had at least one sample:

Primitive	Sample
log, budget, until	320-budget-aware-crawler
parallel, pipeline, phase	310-workflow-audit-verify, 60-workflow-parallel-linter
call.json, call.text	310-workflow-audit-verify, 70-multi-file-subagent-summarizer
call.workflow	❌ docs only — no sample

Why this improves transfer

Someone porting a Claude dynamic workflow that composes sub-workflows via workflow(ref, args) couldn't find a working rig example showing call.workflow. The new sample (330-nested-workflow-composition.md) closes that gap with a short, idiomatic program that:

• defines a reusable child workflow with typed input
• calls it from a parent workflow with call.workflow(child, { dir }, { label })
• shows the inline sharing of budget, limiter, and event stream
• includes the direct Claude→rig mapping comment

Files changed

• skills/rig/samples/330-nested-workflow-composition.md — new sample

Validation run

npm run sample -- --testNamePattern="skill markdown samples typecheck"
✓ typechecks extracted rig programs with npx tsc (402 tests | 401 skipped)

Remaining intentional differences

• effort / agentType / resume journal / worktree isolation — documented in claude-workflow-conversion.md, not modeled in rig
• budget counts agent calls, not tokens — documented in conversion reference

Generated by Daily Rig Claude Dynamic Workflow Compatibility · sonnet46 39.1 AIC · ⌖ 8.15 AIC · ⊞ 5.4K · ◷

[github-actions]

🧠 Matt Pocock Skills Reviewer has completed the skills-based review. ✅

[github-actions]

Skills-Based Review 🧠

Applied /codebase-design — the sample fits cleanly into the existing architecture. No blocking issues found.

📋 Key Themes & Highlights

Positive Highlights

• ✅ Correctly uses WorkflowWithoutInputSpec for fullAudit (no input field needed on the entry-point workflow)
• ✅ r?.issues optional chaining is accurate — call.json returns T | null, so the child workflow output is nullable
• ✅ { label } option correctly applies to both call.json and call.workflow via their respective options types
• ✅ Closes the documented gap: call.workflow was the only Claude dynamic-workflow primitive with no sample
• ✅ PR description includes a validation run confirming typechecks pass

🧠 Reviewed using Matt Pocock's skills by Matt Pocock Skills Reviewer · sonnet46 37.1 AIC · ⌖ 4.07 AIC · ⊞ 6.3K
_{Comment /matt to run again}