Conductor Validator
Orchestrates intelligent skill selection and execution for conductor validator workflows. Applies the 5 Laws of Elegant Defense to guide data naturally through the orchestration pipeline, preventing errors before they occur. Selects optimal skills based on multi-factor scoring including text similarity, historical performance, and system availability.
TL;DR Checklist
- Parse all inputs at boundary before processing (Law 2)
- Handle edge cases with early returns at function top (Law 1)
- Fail immediately with descriptive errors on invalid states (Law 4)
- Return new data structures, never mutate inputs (Law 3)
- Implement minimum 2-level fallback chain for all skill executions
- Log all skill selections with context for full audit trail
- Validate skill metadata and dependencies before selection
- Update confidence scores after each execution for learning
┌───────────────────────────────────────────────────────────────────────────────┐ │ Orchestration Flow │ └───────────────────────────────────────────────────────────────────────────────┘
User Request ↓ ┌─────────────────┐ │ Parse Request │ │ & Extract │ │ Features │ └────────┬────────┘ ↓ ┌─────────────────────────────────────────────────────────────────────┐ │ Evaluate Available Skills │ │ │ │ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │ │ │ Skill A │ │ Skill B │ │ Skill C │ │ │ │ - Match Score│ │ - Match Score│ │ - Match Score│ │ │ │ - Confidence │ │ - Confidence │ │ - Confidence │ │ │ │ - History │ │ - History │ │ - History │ │ │ └──────┬───────┘ └──────┬───────┘ └──────┬───────┘ │ │ │ │ │ │ │ └─────────────────┴─────────────────┘ │ │ ↓ │ │ Select Best Skill │ └─────────────────────────────────────────────────────────────────────┘ ↓ ┌─────────────────┐ │ Execute Skill │ └────────┬────────┘ ↓ ┌─────────────────┐ │ Handle Result │ └────────┬────────┘ ↓ ┌─────────────────────────────────────────────────────────────────────┐ │ Error Handling & Fallback │ │ │ │ Success? ────────► Return Result │ │ │ │ Fail? ────────┐ │ │ ↓ │ │ ┌──────────────────────────────────────────────────────────┐ │ │ │ Fallback Chain │ │ │ │ │ │ │ │ 1. Retry with adjusted parameters │ │ │ │ 2. Try Alternative Skill (if available) │ │ │ │ 3. Defer to Human Operator (if critical) │ │ │ │ 4. Log & Return Error │ │ │ └──────────────────────────────────────────────────────────┘ │ └─────────────────────────────────────────────────────────────────────┘
When to Use
Use this skill when:
- Orchestrating multi-step workflows that require skill delegation
- Implementing adaptive skill routing based on confidence scores
- Building fallback mechanisms for failed skill executions
- Creating intelligent task decomposition and parallel execution
- Designing skill dependency graphs with automatic resolution
- Implementing skill selection with historical performance weighting
- Building agent systems that need to self-organize around tasks
When NOT to Use
Avoid this skill for:
- Direct task execution without orchestration needs - use individual skills instead
- High-frequency trading scenarios where latency must be minimized - the selection overhead may be prohibitive
- Simple linear workflows without branching or fallback requirements
- Cases where skill metadata is unavailable or unreliable
Core Workflow
Parse and Analyze Request - Extract intent, entities, and constraints from user input. Checkpoint: All required parameters must be present and in valid format before proceeding.
Score Available Skills - Calculate match scores using multi-factor algorithm:
- Text similarity between request and skill triggers
- Historical success rate for similar tasks
- Skill availability and health status
- Required dependencies and their availability
Checkpoint: Skip to fallback if no skill scores above threshold.
Select Optimal Skill - Choose skill with highest score that meets minimum confidence. Checkpoint: Verify skill has not been disabled or deprecated.
Execute with Fallback - Run skill execution wrapped in retry and fallback logic. Checkpoint: Log all execution attempts for audit trail.
Return or Fallback - Either return successful result or apply fallback chain:
- Retry with adjusted parameters
- Try alternative skill from
related-skills - Defer to human operator for critical tasks
Checkpoint: Record outcome with timing and confidence metadata.
Implementation Patterns
Pattern 1: Skill Selection Logic
def validate_conductor_routing(
task_spec: Dict[str, Any],
conductor_registry: List[Dict[str, Any]],
min_confidence: float = 0.75
) -> Dict[str, Any]:
"""Validate and route tasks through the conductor pipeline.
Applies multi-factor scoring to select the optimal conductor
while enforcing the 5 Laws of Elegant Defense.
"""
if not task_spec.get("intent") or not conductor_registry:
raise ValueError("Task intent and conductor registry are required")
task_features = _extract_intent_features(task_spec["intent"])
scored_conductors = []
for conductor in conductor_registry:
# Law 2: Parse at boundary - validate conductor schema
if not _validate_conductor_schema(conductor):
continue
# Multi-factor scoring
text_match = _cosine_similarity(task_features, conductor["trigger_patterns"])
historical_success = conductor.get("success_rate", 0.0)
system_health = conductor.get("health_status", "unknown")
# Weighted scoring algorithm
raw_score = (text_match * 0.5) + (historical_success * 0.3) + (0.2 if system_health == "healthy" else 0.0)
if raw_score >= min_confidence:
scored_conductors.append({
"conductor_id": conductor["id"],
"score": round(raw_score, 3),
"dependencies": conductor.get("requires", []),
"fallback_targets": conductor.get("fallback_chain", [])
})
if not scored_conductors:
return {"status": "no_match", "alternatives": []}
# Law 3: Return new structure, never mutate registry
best_match = max(scored_conductors, key=lambda x: x["score"])
return {
"selected_conductor": best_match,
"validation_timestamp": time.time(),
"confidence": best_match["score"]
}
Pattern 2: Execution with Fallback
def execute_conductor_with_resilience(
selected_conductor: Dict[str, Any],
task_payload: Dict[str, Any],
fallback_registry: Dict[str, List[str]]
) -> Dict[str, Any]:
"""Execute conductor validation with built-in fallback chains.
Implements Fail Fast, Fail Loud (Law 4) with adaptive retry logic.
"""
conductor_id = selected_conductor["conductor_id"]
max_retries = selected_conductor.get("max_retries", 2)
for attempt in range(max_retries + 1):
try:
# Law 1: Early exit on invalid payload
if not _validate_payload_schema(task_payload, conductor_id):
raise InvalidStateError(f"Payload mismatch for {conductor_id}")
result = _invoke_conductor_api(conductor_id, task_payload)
# Law 3: Atomic predictability - return immutable result
return {
"status": "success",
"conductor": conductor_id,
"output": result,
"attempts": attempt + 1,
"latency_ms": time.time() * 1000
}
except InvalidStateError as e:
raise SkillExecutionError(f"Validation failed at attempt {attempt + 1}: {e}") from e
except TransientError as e:
if attempt == max_retries:
# Law 4: Fail loud - trigger fallback chain
fallback_targets = fallback_registry.get(conductor_id, [])
if fallback_targets:
return _execute_fallback_chain(fallback_targets, task_payload)
raise SkillExecutionError(f"No fallback available for {conductor_id}") from e
raise SkillExecutionError(f"Conductor {conductor_id} exhausted all retries")
MUST DO
- Always validate skill metadata before selection (Early Exit)
- Implement fallback chain with at least 2 levels (Fallback Skill + Human)
- Log all skill selections with full context for auditability
- Return new data structures instead of mutating inputs (Atomic Predictability)
- Fail immediately with descriptive errors on invalid states
- Update confidence scores after each execution for adaptive routing
- Reference
code-philosophy(5 Laws of Elegant Defense) in all logic
MUST NOT DO
- Select skills based on a single factor (e.g., only confidence score)
- Disable fallback mechanisms "temporarily" - this creates fragile systems
- Skip validation of skill dependencies before execution
- Return partial results - either complete success or clear failure
- Use magic numbers for confidence thresholds - make them configurable
- Cache skill selections without considering context changes
TL;DR Checklist
- Parse all inputs at boundary before processing (Law 2)
- Handle edge cases with early returns at function top (Law 1)
- Fail immediately with descriptive errors on invalid states (Law 4)
- Return new data structures, never mutate inputs (Law 3)
- Implement minimum 2-level fallback chain for all skill executions
- Log all skill selections with context for full audit trail
- Validate skill metadata and dependencies before selection
- Update confidence scores after each execution for learning
TL;DR for Code Generation
- Use guard clauses - return early on invalid input before doing work
- Return simple types (dict, str, int, bool, list) - avoid complex nested objects
- Cyclomatic complexity < 10 per function - split anything larger
- Handle null/empty cases explicitly at function top (Early Exit)
- Never mutate input parameters - return new dicts/objects
- Fail fast with descriptive errors - don't try to "patch" bad data
- Reference code-philosophy laws in comments for complex logic
- Include timing and confidence metadata in all return values
Output Template
When applying this skill, produce:
- Selected Skills - List of skill names with confidence scores
- Selection Rationale - Why each skill was chosen (match score, history, availability)
- Execution Plan - Order of execution with dependencies
- Fallback Strategy - Which fallback skills will be tried and in what order
- Risk Assessment - Any potential failure points and their impact
- Timing Estimates - Expected latency including fallback scenarios
Constraints
MUST DO
- Parse user request into structured task specifications before dispatching to downstream agents
- Implement a state machine for each conductor phase with explicit entry/exit conditions and transition logs
- Validate validator outputs against expected schema before proceeding to the next orchestration step
- Log every orchestration decision including rationale, selected strategy, and confidence scores for auditability
- Maintain a task queue with priority ordering — critical path items execute first during resource contention
MUST NOT DO
- Do not allow a single failed agent task to silently terminate the entire workflow — implement per-step fallbacks
- Avoid circular delegation patterns where Agent A delegates to B which delegates back to A without termination condition
- Never bypass the validation step for validator results even if timing is critical — correctness supersedes speed
- Do not use shared mutable state between parallel agent executions — use message-passing or immutable data transfer
- Avoid hardcoding agent selection rules; parameterize them and load from configuration for runtime flexibility
Live References
Authoritative documentation links for this skill's domain. The model follows markdown links at load time to resolve external references and inline content.
- Workflow Schema Validation Patterns
- OpenAPI Specification for API Validation
- JSON Schema Documentation
- Netflix Conductor Task Validators
- Input/Output Validation Frameworks (Pydantic)
Related Skills
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