Sequential pipeline (graph, adk-graph-workflow/release_notes.py)
  __START__ -> parse_log
  parse_log -> group_changes
  group_changes -> render_notes

Coordinator and dispatcher (graph, adk-graph-routes/build_router.py)
  __START__ -> classify_build
  classify_build -> triage_links [broken_links]
  classify_build -> report_clean [clean]
  classify_build -> ask_for_rerun [__DEFAULT__]
  triage_links -> check_fixes

Human-in-the-loop (graph, adk-human-approval/migration_gate.py)
  __START__ -> draft_migration
  draft_migration -> check_migration
  check_migration -> request_approval [review]
  request_approval -> read_decision
  read_decision -> apply_migration [approve]
  read_decision -> record_rejection [reject]

Generate and review (graph, adk-generate-review/review_gate.py)
  __START__ -> read_changelog
  read_changelog -> write_announcement
  write_announcement -> review_announcement
  review_announcement -> gate
  gate -> publish [approve]
  gate -> send_back [reject]

Iterative refinement (graph, adk-iterative-refinement/refine_entry.py)
  __START__ -> load_change
  load_change -> write_entry
  write_entry -> check_entry
  check_entry -> accept [done]
  check_entry -> revise_entry [revise]
  check_entry -> give_up [limit]
  revise_entry -> check_entry

Parallel fan-out and gather (graph, adk-parallel-gather/release_prep.py)
  __START__ -> load_release
  load_release -> write_highlights
  write_highlights -> gather
  load_release -> write_upgrade_steps
  write_upgrade_steps -> gather
  load_release -> check_links
  check_links -> gather
  gather -> assemble

Parallel fan-out, partial results (dynamic, adk-parallel-gather/release_prep.py)
  __START__ -> load_release
  load_release -> prepare
  prepare -> assemble

Coordinator with sub-agents (collaborative, adk-sub-agents/review_team.py)
  docs_reviewer (depth 1)
    pr_summarizer (depth 2, sub-agent, mode=single_turn)
    style_checker (depth 2, sub-agent, mode=single_turn)

Hierarchical task decomposition (collaborative, adk-task-decomposition/upgrade_guide.py)
  plan_guide (depth 1)
    write_section (depth 2, AgentTool)
      research_docs (depth 3, AgentTool)

