Agent Skills: Team Executor

Team Executor

Lightweight session execution skill: load session -> reconcile state -> spawn team-worker agents -> execute -> deliver. No analysis, no role generation -- only executes existing team-coordinate sessions.

Architecture

+---------------------------------------------------+
|  Skill(skill="team-executor")                      |
|  args="--session=<path>" [REQUIRED]                |
+-------------------+-------------------------------+
                    | Session Validation
         +---- --session valid? ----+
         | NO                       | YES
         v                          v
    Error immediately          Orchestration Mode
    (no session)               -> executor
                                    |
                    +-------+-------+-------+
                    v       v       v       v
                 [team-worker agents loaded from session role-specs]

Session Validation (BEFORE routing)

CRITICAL: Session validation MUST occur before any execution.

Parse Arguments

Extract from $ARGUMENTS:

• --session=<path>: Path to team-coordinate session folder (REQUIRED)

Validation Steps

1. Check --session provided:

   • If missing -> ERROR: "Session required. Usage: --session=<path-to-TC-folder>"

2. Validate session structure (see specs/session-schema.md):

   • Directory exists at path
   • team-session.json exists and valid JSON
   • task-analysis.json exists and valid JSON
   • role-specs/ directory has at least one .md file
   • Each role in team-session.json#roles has corresponding .md file in role-specs/

3. Validation failure:

   • Report specific missing component
   • Suggest re-running team-coordinate or checking path

Role Router

This skill is executor-only. Workers do NOT invoke this skill -- they are spawned as team-worker agents directly.

Dispatch Logic

| Scenario | Action | |----------|--------| | No --session | ERROR immediately | | --session invalid | ERROR with specific reason | | Valid session | Orchestration Mode -> executor |

Orchestration Mode

Invocation: Skill(skill="team-executor", args="--session=<session-folder>")

Lifecycle:

Validate session
  -> executor Phase 0: Reconcile state (reset interrupted, detect orphans)
  -> executor Phase 1: Spawn first batch team-worker agents (background) -> STOP
  -> Worker executes -> callback -> executor advances next step
  -> Loop until pipeline complete -> Phase 2 report + completion action

User Commands (wake paused executor):

| Command | Action | |---------|--------| | check / status | Output execution status graph, no advancement | | resume / continue | Check worker states, advance next step |

Role Registry

| Role | File | Type | |------|------|------| | executor | roles/executor/role.md | built-in orchestrator | | (dynamic) | <session>/role-specs/<role-name>.md | loaded from session |

Executor Spawn Template

v2 Worker Spawn (all roles)

When executor spawns workers, use team-worker agent with role-spec path:

spawn_agent({
  agent_type: "team_worker",
  task_name: "<task-id>",
  fork_context: false,
  items: [
    { type: "text", text: `## Role Assignment
role: <role>
role_spec: <session-folder>/role-specs/<role>.md
session: <session-folder>
session_id: <session-id>
requirement: <task-description>
inner_loop: <true|false>

Read role_spec file to load Phase 2-4 domain instructions.` },

    { type: "text", text: `## Task Context
task_id: <task-id>
title: <task-title>
description: <task-description>
pipeline_phase: <pipeline-phase>` },

    { type: "text", text: `## Upstream Context
<prev_context>` }
  ]
})

After spawning, use wait_agent({ targets: [...], timeout_ms: 900000 }) to collect results, then close_agent({ target: <name> }) each worker.

Model Selection Guide

team-executor loads roles dynamically from session role-specs. Use reasoning_effort based on the role type defined in the session:

• Implementation/fix roles: reasoning_effort: "high"
• Verification/test roles: reasoning_effort: "medium"
• Default when role type is unclear: reasoning_effort: "high"

v4 Agent Coordination

State Reconciliation

On resume, executor reconciles session state with actual running agents:

const running = list_agents({})
// Compare with session's task-analysis.json active tasks
// Reset orphaned tasks (in_progress but agent gone) to pending

Worker Communication

• send_message({ target: "<task-id>", items: [...] }) -- queue supplementary context
• assign_task({ target: "<task-id>", items: [...] }) -- assign new work to inner_loop worker
• close_agent({ target: "<task-id>" }) -- cleanup completed worker

Completion Action

When pipeline completes (all tasks done), executor presents an interactive choice:

request_user_input({
  questions: [{
    question: "Team pipeline complete. What would you like to do?",
    header: "Completion",
    multiSelect: false,
    options: [
      { label: "Archive & Clean (Recommended)", description: "Archive session, clean up team" },
      { label: "Keep Active", description: "Keep session for follow-up work" },
      { label: "Export Results", description: "Export deliverables to target directory, then clean" }
    ]
  }]
})

Action Handlers

| Choice | Steps | |--------|-------| | Archive & Clean | Update session status="completed" -> output final summary with artifact paths | | Keep Active | Update session status="paused" -> output: "Resume with: Skill(skill='team-executor', args='--session=<path>')" | | Export Results | request_user_input(target path) -> copy artifacts to target -> Archive & Clean |

Integration with team-coordinate

| Scenario | Skill | |----------|-------| | New task, no session | team-coordinate | | Existing session, resume execution | team-executor | | Session needs new roles | team-coordinate (with resume) | | Pure execution, no analysis | team-executor |

Error Handling

| Scenario | Resolution | |----------|------------| | No --session provided | ERROR immediately with usage message | | Session directory not found | ERROR with path, suggest checking path | | team-session.json missing | ERROR, session incomplete, suggest re-run team-coordinate | | task-analysis.json missing | ERROR, session incomplete, suggest re-run team-coordinate | | No role-specs in session | ERROR, session incomplete, suggest re-run team-coordinate | | Role-spec file not found | ERROR with expected path | | capability_gap reported | Warn only, cannot generate new role-specs | | Fast-advance spawns wrong task | Executor reconciles on next callback | | Completion action fails | Default to Keep Active, log warning |