Initial: Claude config with agents, skills, commands, rules and scripts

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+---
+name: iterative-retrieval
+description: Pattern for progressively refining context retrieval to solve the subagent context problem
+---
+
+# Iterative Retrieval Pattern
+
+Solves the "context problem" in multi-agent workflows where subagents don't know what context they need until they start working.
+
+## When to Activate
+
+- Spawning subagents that need codebase context they cannot predict upfront
+- Building multi-agent workflows where context is progressively refined
+- Encountering "context too large" or "missing context" failures in agent tasks
+- Designing RAG-like retrieval pipelines for code exploration
+- Optimizing token usage in agent orchestration
+
+## The Problem
+
+Subagents are spawned with limited context. They don't know:
+- Which files contain relevant code
+- What patterns exist in the codebase
+- What terminology the project uses
+
+Standard approaches fail:
+- **Send everything**: Exceeds context limits
+- **Send nothing**: Agent lacks critical information
+- **Guess what's needed**: Often wrong
+
+## The Solution: Iterative Retrieval
+
+A 4-phase loop that progressively refines context:
+
+```
+┌─────────────────────────────────────────────┐
+│                                             │
+│   ┌──────────┐      ┌──────────┐            │
+│   │ DISPATCH │─────▶│ EVALUATE │            │
+│   └──────────┘      └──────────┘            │
+│        ▲                  │                 │
+│        │                  ▼                 │
+│   ┌──────────┐      ┌──────────┐            │
+│   │   LOOP   │◀─────│  REFINE  │            │
+│   └──────────┘      └──────────┘            │
+│                                             │
+│        Max 3 cycles, then proceed           │
+└─────────────────────────────────────────────┘
+```
+
+### Phase 1: DISPATCH
+
+Initial broad query to gather candidate files:
+
+```javascript
+// Start with high-level intent
+const initialQuery = {
+  patterns: ['src/**/*.ts', 'lib/**/*.ts'],
+  keywords: ['authentication', 'user', 'session'],
+  excludes: ['*.test.ts', '*.spec.ts']
+};
+
+// Dispatch to retrieval agent
+const candidates = await retrieveFiles(initialQuery);
+```
+
+### Phase 2: EVALUATE
+
+Assess retrieved content for relevance:
+
+```javascript
+function evaluateRelevance(files, task) {
+  return files.map(file => ({
+    path: file.path,
+    relevance: scoreRelevance(file.content, task),
+    reason: explainRelevance(file.content, task),
+    missingContext: identifyGaps(file.content, task)
+  }));
+}
+```
+
+Scoring criteria:
+- **High (0.8-1.0)**: Directly implements target functionality
+- **Medium (0.5-0.7)**: Contains related patterns or types
+- **Low (0.2-0.4)**: Tangentially related
+- **None (0-0.2)**: Not relevant, exclude
+
+### Phase 3: REFINE
+
+Update search criteria based on evaluation:
+
+```javascript
+function refineQuery(evaluation, previousQuery) {
+  return {
+    // Add new patterns discovered in high-relevance files
+    patterns: [...previousQuery.patterns, ...extractPatterns(evaluation)],
+
+    // Add terminology found in codebase
+    keywords: [...previousQuery.keywords, ...extractKeywords(evaluation)],
+
+    // Exclude confirmed irrelevant paths
+    excludes: [...previousQuery.excludes, ...evaluation
+      .filter(e => e.relevance < 0.2)
+      .map(e => e.path)
+    ],
+
+    // Target specific gaps
+    focusAreas: evaluation
+      .flatMap(e => e.missingContext)
+      .filter(unique)
+  };
+}
+```
+
+### Phase 4: LOOP
+
+Repeat with refined criteria (max 3 cycles):
+
+```javascript
+async function iterativeRetrieve(task, maxCycles = 3) {
+  let query = createInitialQuery(task);
+  let bestContext = [];
+
+  for (let cycle = 0; cycle < maxCycles; cycle++) {
+    const candidates = await retrieveFiles(query);
+    const evaluation = evaluateRelevance(candidates, task);
+
+    // Check if we have sufficient context
+    const highRelevance = evaluation.filter(e => e.relevance >= 0.7);
+    if (highRelevance.length >= 3 && !hasCriticalGaps(evaluation)) {
+      return highRelevance;
+    }
+
+    // Refine and continue
+    query = refineQuery(evaluation, query);
+    bestContext = mergeContext(bestContext, highRelevance);
+  }
+
+  return bestContext;
+}
+```
+
+## Practical Examples
+
+### Example 1: Bug Fix Context
+
+```
+Task: "Fix the authentication token expiry bug"
+
+Cycle 1:
+  DISPATCH: Search for "token", "auth", "expiry" in src/**
+  EVALUATE: Found auth.ts (0.9), tokens.ts (0.8), user.ts (0.3)
+  REFINE: Add "refresh", "jwt" keywords; exclude user.ts
+
+Cycle 2:
+  DISPATCH: Search refined terms
+  EVALUATE: Found session-manager.ts (0.95), jwt-utils.ts (0.85)
+  REFINE: Sufficient context (2 high-relevance files)
+
+Result: auth.ts, tokens.ts, session-manager.ts, jwt-utils.ts
+```
+
+### Example 2: Feature Implementation
+
+```
+Task: "Add rate limiting to API endpoints"
+
+Cycle 1:
+  DISPATCH: Search "rate", "limit", "api" in routes/**
+  EVALUATE: No matches - codebase uses "throttle" terminology
+  REFINE: Add "throttle", "middleware" keywords
+
+Cycle 2:
+  DISPATCH: Search refined terms
+  EVALUATE: Found throttle.ts (0.9), middleware/index.ts (0.7)
+  REFINE: Need router patterns
+
+Cycle 3:
+  DISPATCH: Search "router", "express" patterns
+  EVALUATE: Found router-setup.ts (0.8)
+  REFINE: Sufficient context
+
+Result: throttle.ts, middleware/index.ts, router-setup.ts
+```
+
+## Integration with Agents
+
+Use in agent prompts:
+
+```markdown
+When retrieving context for this task:
+1. Start with broad keyword search
+2. Evaluate each file's relevance (0-1 scale)
+3. Identify what context is still missing
+4. Refine search criteria and repeat (max 3 cycles)
+5. Return files with relevance >= 0.7
+```
+
+## Best Practices
+
+1. **Start broad, narrow progressively** - Don't over-specify initial queries
+2. **Learn codebase terminology** - First cycle often reveals naming conventions
+3. **Track what's missing** - Explicit gap identification drives refinement
+4. **Stop at "good enough"** - 3 high-relevance files beats 10 mediocre ones
+5. **Exclude confidently** - Low-relevance files won't become relevant
+
+## Related
+
+- [The Longform Guide](https://x.com/affaanmustafa/status/2014040193557471352) - Subagent orchestration section
+- `continuous-learning` skill - For patterns that improve over time
+- Agent definitions in `~/.claude/agents/`