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- Add 3 missing events to Section 7.1: Setup, PermissionRequest, SubagentStop - Document PreToolUse additionalContext feature (v2.1.9+) - Create 3 production-ready hook templates (setup, permission, subagent) - Add resource evaluation documenting rejection of secondary source Source: Official Claude Code CHANGELOG, not external blog posts Closes gap identified during resource evaluation process Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
202 lines
7.3 KiB
Markdown
202 lines
7.3 KiB
Markdown
# Resource Evaluation: Mastering Claude Code Hooks
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**Resource**: [Mastering Claude Code Hooks: Automation, Validation, and Logging](https://www.mikul.me/blog/mastering-claude-code-hooks-automation-validation-logging)
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**Author**: Mikul Gohil
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**Date**: January 18, 2026
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**Evaluation Date**: January 27, 2026
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**Evaluator**: Claude Sonnet 4.5 + technical-writer agent challenge
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---
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## Executive Summary
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**Score**: 1/5 (Low - Reject)
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**Decision**: Do NOT integrate or link this article
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**Action Taken**: Updated guide directly from official Claude Code CHANGELOG (v2.1.9-v2.1.10)
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---
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## Evaluation Process
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### Phase 1: Initial Assessment (Score: 3/5)
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- WebFetch article content
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- Identified 8 hook events vs guide's 7
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- Noted multi-formatter chaining example
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- Preliminary recommendation: Integrate subsection + improve logging
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### Phase 2: Fact-Check (Score: 2/5)
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- Deep WebFetch for complete technical details
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- Line-by-line comparison with guide Section 7 (5949-6850+)
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- Verification against claude-code-releases.md
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- Discovered: Multi-formatter is trivial bash, not advanced pattern
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### Phase 3: Brutal Challenge (Score: 1/5)
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- Technical-writer agent challenge exposed confirmation bias
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- Root cause identified: Article copies official CHANGELOG, adds no original value
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- Recommendation changed from "integrate" to "reject + fix from source"
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---
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## Findings
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### What the Article Covers
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1. **8 Hook Events**: PreToolUse, PostToolUse, PermissionRequest, UserPromptSubmit, Notification, Stop, SubagentStop, Setup
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2. **Multi-formatter chaining**: `prettier; black; rustfmt; exit 0` (sequential commands)
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3. **Security patterns**: 3 basic blocks (rm -rf, git push --force, .env.prod)
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4. **Audit logging**: Daily JSONL files with UTC timestamps
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5. **Configuration**: Standard JSON settings (global vs project-specific)
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### What the Guide Already Has (Superior)
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1. **7 Hook Events** documented (missing Setup, PermissionRequest, SubagentStop)
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2. **4 Windows templates** (PowerShell + Batch) - Article has ZERO
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3. **13+ security patterns** (comprehensive-security.sh) vs article's 3
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4. **Log rotation** with 7-day pruning vs article's basic daily files
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5. **18 hook templates** in examples/hooks/bash/
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### Critical Discovery
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**ALL meaningful information in the article originates from the official Claude Code CHANGELOG, not from original research by the author.**
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- Setup event: Added v2.1.10 ([releases.md:101](../../guide/claude-code-releases.md))
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- PreToolUse additionalContext: Added v2.1.9 ([releases.md:111](../../guide/claude-code-releases.md))
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- Hook events: All documented in [official CHANGELOG](https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md)
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---
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## Why Score 1/5 (Reject)
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### 1. No Original Technical Value
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- **Multi-formatter chaining**: Trivial bash pattern (`cmd1; cmd2; cmd3`) - any developer knows this
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- **Security patterns**: Incomplete subset (3 vs guide's 13+)
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- **Log rotation**: No pruning logic (dangerous - disk will fill)
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- **Windows coverage**: Zero (guide has complete PowerShell/Batch templates)
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### 2. Secondary Source, Not Primary
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The article is a **tier-3 blog post** that copies information from official sources without attribution. Integrating it would create dependency on a secondary source when we can document directly from:
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- Official CHANGELOG: https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md
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- Official Documentation: https://code.claude.com/docs/en/hooks
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- Official Repository: https://github.com/anthropics/claude-code
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### 3. Maintenance Burden
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- **Link rot risk**: Author can delete blog anytime
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- **Accuracy drift**: Article won't track future Claude Code updates
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- **Quality signal**: Linking mediocre content degrades guide credibility
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---
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## Actions Taken (Instead of Integration)
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### 1. Updated Section 7.1 Event Types Table
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**File**: `guide/ultimate-guide.md` (line 5986)
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Added 3 missing events from official CHANGELOG:
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```markdown
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| `Setup` | Claude Code starts | Initialization (v2.1.10+) |
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| `PermissionRequest` | Permission dialog appears | Custom approval logic |
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| `SubagentStop` | Sub-agent completes | Subagent cleanup |
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```
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**Source**: Official CHANGELOG v2.1.10
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### 2. Documented PreToolUse additionalContext
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**File**: `guide/ultimate-guide.md` (line 6107)
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Added documentation for v2.1.9 feature:
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```markdown
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**PreToolUse additionalContext** (v2.1.9+): PreToolUse hooks can inject context
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into Claude's prompt via `additionalContext`. This allows enriching Claude's
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understanding before tool execution.
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```
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**Source**: Official CHANGELOG v2.1.9 (releases.md:111)
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### 3. Created 3 New Hook Templates
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**Files created**:
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- `examples/hooks/bash/setup-init.sh` - Startup initialization with project checks
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- `examples/hooks/bash/permission-request.sh` - Custom approval logic + logging
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- `examples/hooks/bash/subagent-stop.sh` - Cleanup, logging, performance monitoring
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**Features**:
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- Production-ready error handling
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- JSONL logging with daily rotation
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- Context injection examples
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- Auto-deny patterns for production safety
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---
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## Fact-Check Results
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| Claim | Verified | Source |
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|-------|----------|--------|
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| "8 hook events available" | ✅ | Correct, guide was missing 3 |
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| "Default 60-second timeout" | ⚠️ | Unsourced author claim |
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| "Formatters should complete <10s" | ⚠️ | Unsourced guideline |
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| "Setup event added v2.1.10" | ✅ | Confirmed in releases.md:101 |
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| "PreToolUse additionalContext v2.1.9" | ✅ | Confirmed in releases.md:111 |
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| "Article creates original value" | ❌ | **All info from official CHANGELOG** |
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---
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## Process Improvement
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### Root Cause: Reactive Documentation
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**Problem**: Guide reacts to external blog posts instead of proactively syncing with official sources.
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**Solution**: Systematic sync workflow
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1. **Weekly CHANGELOG review** (automation candidate)
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2. **Extract new hooks/events** from official repo
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3. **Update guide Section 7.1** + create templates
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4. **Document breaking changes** immediately
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5. **Test templates** before committing
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**Estimated time**: 15-30 min/week vs reactive 2-3 hours when gaps discovered via external articles.
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### Recommendation
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Create `scripts/sync-official-docs.sh`:
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```bash
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#!/bin/bash
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# Detect documentation drift from official sources
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# Compare Section 7.1 events vs CHANGELOG mentions
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# Flag missing events, deprecated patterns, new features
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```
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---
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## Conclusion
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**This evaluation demonstrates the importance of:**
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1. **Primary sources first**: Always check official CHANGELOG before external articles
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2. **Systematic sync**: Don't wait for blog posts to discover gaps
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3. **Critical evaluation**: Verify technical value, not just coverage
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4. **Brutal honesty**: Reject mediocre sources that add maintenance burden
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**The article served one purpose**: It exposed a gap in our sync process. The correct response was to fix the process, not reward the secondary source.
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---
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## References
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- **Official CHANGELOG**: https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md
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- **Guide Section 7**: [ultimate-guide.md](../../guide/ultimate-guide.md) (lines 5949-6850+)
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- **Release History**: [claude-code-releases.md](../../guide/claude-code-releases.md)
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- **Hook Templates**: [examples/hooks/bash/](../../examples/hooks/bash/)
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- **Article (rejected)**: https://www.mikul.me/blog/mastering-claude-code-hooks-automation-validation-logging
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---
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**Evaluation Methodology**: [docs/resource-evaluations/README.md](./README.md)
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