iOS Generate Harness#

Scan an iOS project and auto-generate the Claude Code harness file system. Core principle: CLAUDE.md is a map, not an encyclopedia — it holds only pointers and hard constraints; details live in docs/, READMEs, and .claude/rules/.

Arguments#

• None (default): Full project initialization — generate the complete harness
• <module-path>: Process a single module (e.g. Packages/SomeKit, App/LoginModule)

Routing: if an argument is provided and is not --init → single-module mode; otherwise → full-project mode.

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Execution Protocol (Mandatory)#

All multi-step flows MUST create a task list via TaskCreate and execute step by step.

Why#

• Models tend to skip or forget steps when processing long instructions
• Task lists provide visible progress — users can track what's done
• Each task must be marked completed before moving to the next, preventing skipped steps
• If something fails, the exact failing task is identifiable

How#

1. After reading this skill, the first action MUST be TaskCreate for all Phase tasks
2. Before starting each task → TaskUpdate(status: "in_progress")
3. After completing each task → TaskUpdate(status: "completed")
4. Before starting the next task → TaskList to confirm the previous task is completed
5. If a task fails → keep it in_progress, fix the issue, then mark completed

Task Template (Full Project)#

When running Full Project Initialization, MUST create these tasks (in order):

text

Task 1: [Phase 1] Scan project structure
Task 2: [Phase 2] Generate docs/ files
Task 3: [Phase 3] Process each module (README + rules)
Task 4: [Phase 4] Generate CLAUDE.md
Task 5: [Phase 5] Cross-validation
Task 6: [Phase 6] Summary output + write Memory

Task Template (Single Module)#

When running Single Module Flow, MUST create these tasks:

text

Task 1: Scan module {module-name}
Task 2: Generate README quick-card
Task 3: Evaluate and generate Rule file
Task 4: Update indexes (CLAUDE.md + parent package README)
Task 5: Cross-validation

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Full Project Initialization#

Phase 1: Scan Project Structure#

Read scan-procedures.md for extraction methods. Collect:

1. Project metadata: workspace filename, scheme list, iOS deployment target
2. Dependencies: CocoaPods pod list, SPM package list
3. Compiler flags: #if macro names → identify dual/multi-target structure
4. SwiftLint rules: error-level rule list
5. Module inventory: SPM packages under Packages/ + business modules under the main directory
6. Architecture pattern: infer from file naming and imports (MVVM / MVP / MVC / Coordinator etc.)

Run all scans in parallel (multiple Glob/Grep calls or Agent sub-tasks).

Phase 2: Generate docs/#

Generate each file per templates.md templates. Prepend <!-- AUTO-GENERATED, review and edit --> to every file.

FileData sourceScan methodARCHITECTURE.mdimport statements → dependency graph; directory structure → layeringsee scan-procedures.md "Architecture inference"PITFALLS.mdswiftlint:disable comments + force unwrap/cast scansee scan-procedures.md "Dangerous patterns"STYLE.mdfile naming patterns + directory structure + localization detectionsee scan-procedures.md "Naming & style detection"QUALITY.mdfixed template, tweaked per detected toolchainuse template directlySCRIPTS.mdScripts/ directory scan + Makefile + fastlanesee scan-procedures.md "Script discovery"

Existing file handling: if a same-named file already exists in docs/, read it and merge — do not overwrite. Use <!-- AUTO-GENERATED --> markers to distinguish generated vs. hand-written content.

Phase 3: Process Each Module#

Run the "Single Module Flow" (below) for every module discovered in Phase 1.

Order:

1. SPM packages under Packages/ first (skip packages with only Package.swift and no .swift source files)
2. Then business modules under the main directory

Parallelism: multiple modules can be processed concurrently via Agent sub-tasks, but within a single module README and rule generation must be sequential (rule depends on README analysis).

Phase 3 completion criteria (ALL must be met to mark task completed):

• Every module with source code has a README
• Skipped modules (e.g. empty packages) have documented reasons

Phase 4: Generate CLAUDE.md#

Fill the "CLAUDE.md skeleton" template from templates.md with Phase 1 scan data + Phase 3 module outputs.

At this point all READMEs and rule files already exist, so CLAUDE.md can be written once with complete routing.

Fill rules:

• Quick Reference: direct scan results from Phase 1
• Task Routing: checklist-group format; one entry per README created in Phase 3, plus rule file auto-load annotations
• Key Rules: translate SwiftLint error-level rules to human-readable constraints + hard constraints found by code scanning (e.g. force-unwrap ban)
• Build & Compile: infer commands from workspace + scheme names; if multiple schemes, state when to build which
• Verification Loop: use fixed template

Constraint: final CLAUDE.md < 80 lines. If over, trim Key Rules to error-level only.

Phase 5: Cross-Validation (Mandatory)#

After all files are generated and before the summary output, run these cross-validation checks. Any failure must be fixed before marking this task completed.

Check 1: README → CLAUDE.md reference completeness

text

For each newly created/updated Packages/*/README.md:
  - Does CLAUDE.md task routing have a corresponding checklist entry?
  - Missing → immediately add to the appropriate task routing group

Check 2: Rule → CLAUDE.md annotation completeness

text

For each newly created .claude/rules/*.md:
  - Does CLAUDE.md annotate "auto-loads .claude/rules/xxx.md"?
  - Missing → add annotation after the corresponding task routing entry

Check 3: CLAUDE.md path validity

text

For all [text](path) links in CLAUDE.md:
  - Does the path target actually exist?
  - Missing → remove the reference or annotate <!-- TODO: create this file -->

Check 4: Rule paths coverage accuracy

text

For each .claude/rules/*.md paths field:
  - Does the glob pattern match the expected files?
  - No matches → fix the pattern

Phase 6: Summary Output#

List all generated/updated files in a table:

text

| File | Status | Lines |
|------|--------|-------|
| CLAUDE.md | created | 72 |
| docs/ARCHITECTURE.md | created | 45 |
| Packages/XXX/README.md | updated | 28 |
| .claude/rules/xxx.md | created | 12 |

Prompt the user to review all files marked <!-- AUTO-GENERATED -->.

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Single Module Flow#

Step 1: Scan Module#

Use the "Swift code scanning" methods from scan-procedures.md. Collect:

text

├── public/open type list (name + one-line responsibility)
├── singletons (shared instances)
├── delegate/protocol definitions
├── async methods
├── import dependency list
└── existing README.md and .claude/rules/ content

Step 2: Generate README Quick-Card#

Use the "README quick-card" template from templates.md.

Must include:

• Module name + one-line description (infer purpose from class/method names)
• API index table (public/open types only, one-line responsibility each)
• Constraints (hard constraints that cause crashes or bugs)
• Anti-patterns (real mistakes or highly common errors)

Optional:

• Usage examples: only when the API is non-obvious (builder pattern, chaining, etc.)
• Dependency notes: only when dependencies are non-obvious

Never write: full method signatures, parameter type details, changelog, installation instructions.

Constraint: 20–40 lines. If over, merge similar types in the API index and drop optional sections.

Existing README handling: if the module already has a README.md, read it and preserve hand-written content; only add missing sections.

Step 3: Decide Whether a Rule Is Needed#

Check each condition — generate a rule if any is met:

ConditionDetection methodExample rule contentCall-order constraintHas configure/ setup + start/ begin method pairs"Call configure before start"Thread constraintHas @MainActor or UI class with async methods"UI updates must be on main thread"Easy-to-misuse APIMethod names contain unsafe/ force, or parameters include Bool toggles"Do not call unsafeXxx directly"Design token constraintModule is a UI component library"Colors/fonts must use semantic tokens"Compiler flag divergenceFiles contain #if TARGET_A/ #if TARGET_B"Build both schemes when modifying"

None met → do not generate a rule file.

Generated rules use the "Rule file" template from templates.md: < 15 lines, imperative sentences.

Step 4: Update Indexes#

• If the module belongs to an umbrella package (e.g. UIComponents sub-component) → update that package's README index table
• MUST add a CLAUDE.md task routing entry for every newly created README
• MUST annotate the auto-load relationship in CLAUDE.md for every newly created rule file

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Output Constraints#

File typeLine limitOver-limit strategyCLAUDE.md80 linesTrim Key Rules to error-level onlyREADME quick-card40 linesMerge similar types, drop optional sectionsRule file15 linesMerge similar rulesdocs/ filesNo hard limitKeep concise, avoid duplication

Path Validation#

• All reference paths in generated files must point to real, existing files
• After generation, verify every [link](path) target exists
• Missing targets → remove the reference or annotate <!-- TODO: create this file -->

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Post-Generation: Write Memory#

After all files are generated, write or update a single memory entry to guide Claude's daily behavior when maintaining the harness. This memory teaches Claude how to use the harness structure, which CLAUDE.md itself cannot express.

Memory file: feedback_harness_maintenance.md

markdown

---
name: Harness maintenance rules
description: How to maintain the harness structure when adding rules, modules, or fixing bugs — keep CLAUDE.md as an index, put details in docs/
type: feedback
---

新增规则/规范时，按 CLAUDE.md 任务路由找对应 docs/ 文件写入，不要直接改 CLAUDE.md。
新增模块时补 README 速查卡，有硬约束时补 .claude/rules/。

**Why:** CLAUDE.md 是索引入口，具体内容分散在 docs/、README、rules 中。直接往 CLAUDE.md 塞内容会破坏分层。

**How to apply:**
1. 用户让记录规则 → 查任务路由确定归属文件
2. 新建模块 → 补 README（20-40 行）+ 按需补 rule（< 15 行）
3. 改完代码 → 执行 Verification Loop

If a memory with similar content already exists (e.g. feedback_docs_harness.md), update it in-place rather than creating a duplicate. Update MEMORY.md index accordingly.