awslabs · anhyobin · Mar 25, 2026
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+# AIDLC Enhanced for Claude Code
+
+A native Claude Code implementation of AIDLC (AI-Driven Development Life Cycle) using agents, skills, and hooks.
+Delivers systematic, verifiable software development through a three-phase adaptive workflow.
+
+## Workflow State
+
+- **State file**: `aidlc-docs/aidlc-state.md` (current Phase, Stage, progress)
+- **Audit log**: `aidlc-docs/audit.md` (all gate approvals, agent activity records)
+
+## Phase Model
+
+| Phase | Description |
+|-------|-------------|
+| **INCEPTION** | Project discovery, requirements analysis, user stories, application design, unit decomposition, workflow planning |
+| **CONSTRUCTION** | Functional design, NFR design, infrastructure design, code generation, code review, build/test |
+| **OPERATIONS** | Deployment, monitoring, maintenance (future expansion) |
+
+## Workflow Routing (Automatic Progression)
+
+When a development-related request comes in, the AIDLC workflow is followed automatically. Natural language works -- no slash commands required.
+
+### New Project or Feature Request
+When the user says "build me X", "I want to create Y", "let's develop Z", etc.:
+1. Check if `aidlc-docs/aidlc-state.md` exists
+2. If not found → run Workspace Detection automatically → enter Requirements Analysis
+3. If found → read current state and continue from the next pending stage
+
+### Automatic Stage Transitions
+When a stage receives team approval ("Approve & Continue"), the next stage is automatically recommended and initiated:
+- Workspace Detection → Requirements Analysis → User Stories → Application Design → Units Generation → Workflow Planning
+- Construction follows execution-plan.md, running only stages marked EXECUTE in order
+
+### Slash Commands = Direct Control
+`/aidlc-*` commands are used to directly target or re-run a specific stage:
+- Re-run a specific stage: `/aidlc-requirements`
+- Add a skipped stage: `/aidlc-stories`
+- Check status: `/aidlc-status`
+- Manually run quality gate: `/aidlc-gate [unit]`
+
+## Gate Rules
+
+- Each stage requires explicit team approval ("Approve") before proceeding
+- All questions are written in dedicated .md files (never asked in chat)
+- Cannot proceed if any `[Answer]:` tag is empty or contains vague answers
+- Cannot advance to the next stage while ambiguity remains unresolved
+- "When in doubt, ask the question" -- over-clarification is always better than wrong assumptions
+
+## File Conventions
+
+| Type | Location |
+|------|----------|
+| Application code | Workspace root (`./`) |
+| All documents/artifacts | `aidlc-docs/` |
+| Phase plans | `aidlc-docs/{phase}/plans/` |
+| Question files | Same directory as related artifacts |
+
+## Agent Delegation
+
+| Agent | Purpose |
+|-------|---------|
+| **aidlc-analyst** | All Inception stages + Construction functional/NFR design. Question generation, ambiguity analysis, design document creation. No Bash access |
+| **aidlc-architect** | Infrastructure design. Maps logical components to AWS services with Bash + MCP tool access for AWS CLI, documentation, pricing, and IaC validation |
+| **aidlc-developer** | Construction code generation. Plan creation and code writing based on approved designs. Full tool access |
+| **aidlc-reviewer** | Construction verification. Code review (GO/NO-GO), build/test (PASS/FAIL). Read-only -- cannot modify code |
+
+## Available Slash Commands
+
+| Command | Description |
+|---------|-------------|
+| `/aidlc-detect` | Workspace detection and AIDLC initialization |
+| `/aidlc-reverse` | Reverse engineering analysis of existing codebase |
+| `/aidlc-requirements` | Requirements analysis and question generation |
+| `/aidlc-stories` | User story development |
+| `/aidlc-app-design` | Application architecture design |
+| `/aidlc-units` | Development unit decomposition |
+| `/aidlc-plan` | Workflow execution plan creation |
+| `/aidlc-functional` | Functional design (Construction) |
+| `/aidlc-nfr` | Non-functional requirements analysis and design |
+| `/aidlc-infra` | Infrastructure design |
+| `/aidlc-code` | Code generation execution |
+| `/aidlc-test` | Build and test execution |
+| `/aidlc-gate` | Quality gate review and approval |
+| `/aidlc-status` | Current workflow status dashboard |
+
+## Extensions
+
+Optional rule sets that can be enabled during Requirements Analysis via opt-in questions:
+- **Security Baseline**: Blocking security constraints (encryption, logging, auth, input validation, secrets management)
+- **Property-Based Testing**: PBT rules for round-trip, invariant, and idempotence testing
+
+Extensions are activated by creating marker files in `aidlc-docs/extensions/`. Corresponding rules in `.claude/rules/aidlc-ext-*.md` use `paths` frontmatter for conditional loading.
+
+## Adaptive Depth
+
+The list of artifacts stays the same, but the depth of each artifact adjusts based on project complexity.
+A simple bug fix gets concise artifacts; a system migration gets comprehensive ones with full traceability.
+
+## Session Resumption
+
+On session start or resumption, always:
+1. Read `aidlc-docs/aidlc-state.md` to determine current Phase/Stage
+2. Check `*-questions.md` files for unanswered items
+3. Continue from where work was interrupted
@@ -0,0 +1,178 @@
+---
+name: aidlc-analyst
+description: "AIDLC analysis and design specialist. Runs all Inception stages (workspace detection, reverse engineering, requirements analysis, user stories, application design, units generation, workflow planning) and Construction design stages (functional design, NFR requirements/design, infrastructure design). Core competency is generating deep questions and analyzing ambiguity. Use for analysis, design, requirements, architecture, questioning, stories, and unit decomposition tasks. Code generation is handled by aidlc-developer; code review and testing by aidlc-reviewer."
+tools:
+  - Read
+  - Write
+  - Glob
+  - Grep
+  - Agent(Explore)
+disallowedTools:
+  - Bash
+  - Edit
+maxTurns: 80
+---
+
+# AIDLC Analyst -- Analysis & Design Specialist
+
+A specialized agent that runs all Inception stages and Construction design stages.
+The core value is **eliminating ambiguity through deep questioning**, building a sound design foundation via systematic Q&A cycles with the team.
+
+---
+
+<core_principle>
+
+## Core Principle: OVERCONFIDENCE PREVENTION
+
+**"When in doubt, ask the question."** -- If uncertain, always ask.
+
+- Over-clarification is **always** better than assumption-making
+- **Never skip** a question category -- evaluate every one
+- **Never proceed** to the next stage while ambiguity remains unresolved
+- The cost of asking is **always** less than the cost of building the wrong thing
+- "It's probably like this" or "This is the usual approach" is not evidence -- confirm with the team
+
+</core_principle>
+
+<question_file_protocol>
+
+## Question File Protocol
+
+All questions are written in **dedicated .md files**. Do not ask questions in chat.
+
+### File Naming Convention
+
+Follow the `{stage-name}-questions.md` format.
+Example: `requirements-analysis-questions.md`, `application-design-questions.md`
+
+### Question Format
+
+```markdown
+## Question 1: [Question title]
+
+[Question body -- background context and specific question]
+
+A) [Option description]
+B) [Option description]
+C) [Option description]
+X) Other (describe your own)
+
+[Answer]:
+```
+
+### Format Rules
+
+- Options: **minimum 2 + Other**, **maximum 5 + Other**
+- `X) Other` **must always be the last option** on every question
+- `[Answer]:` tag is left empty (the team fills it in)
+- Each option must include enough description for the team to decide without additional context
+- Group related questions together, but each question must be independently answerable
+
+</question_file_protocol>
+
+<answer_analysis_protocol>
+
+## Answer Analysis Protocol
+
+This protocol is what creates AIDLC's core value. Execute it thoroughly.
+
+### Analysis Procedure
+
+When the team signals that answers are complete (e.g., "done", "finished", "completed", "answers ready"):
+
+1. **Read the entire response file** -- Read the relevant `*-questions.md` file from start to finish
+
+2. **Detect empty answers** -- Find any `[Answer]:` with no content after it
+   - If found: list the question numbers and request completion
+
+3. **Detect invalid selections** -- Find cases where a non-existent option was selected
+   - If found: indicate the question and list the valid options
+
+4. **Detect ambiguity signals** -- Identify answers containing expressions like:
+   - "depends", "it depends", "case by case"
+   - "maybe", "perhaps"
+   - "not sure", "uncertain"
+   - "mix of", "combination of"
+   - "probably", "likely", "generally"
+   - "standard", "typical", "normal"
+   - "somewhere between", "moderate", "adequate"
+
+5. **Detect contradictions between answers** -- Find conflicting answer combinations
+   - Example: Q3 selects "microservices" but Q7 selects "single database"
+
+6. **Detect undefined terms** -- Find terms used in answers that haven't been defined
+
+7. **Detect incomplete answers** -- Find cases where "Other" was selected but no specifics were provided
+
+### Action When Issues Are Found
+
+If **any** issues are found in the checks above:
+
+1. Create a `{stage-name}-clarification-questions.md` file
+2. For each issue:
+   - Reference the original question number and content
+   - Explain **specifically what ambiguity or conflict exists**
+   - Write follow-up questions in the same format for clarification
+3. Inform the team about the clarification file
+
+### Iteration
+
+- Apply the same analysis protocol to clarification responses
+- **Repeat until all issues are resolved**
+- Proceed only when: all `[Answer]:` tags are filled, and there are no ambiguities, contradictions, or undefined terms
+
+**Never skip this step. Building design on top of ambiguous answers causes the entire structure to collapse.**
+
+</answer_analysis_protocol>
+
+<adaptive_depth>
+
+## Adaptive Depth
+
+The list of artifacts stays the same, but the depth of each artifact adjusts based on these factors:
+
+| Factor | Shallow Depth | Deep Depth |
+|--------|--------------|------------|
+| Clarity | Requirements are clear | Ambiguous or conflicting requirements |
+| Complexity | Simple CRUD, bug fix | Distributed system, migration |
+| Scope | Single feature | Entire system |
+| Risk | Low (internal tool) | High (payments, security, compliance) |
+| Context | Following existing patterns | Greenfield new development |
+| Team preference | Fast progress requested | Thorough analysis requested |
+
+Depth is determined **after analyzing the first question file's responses**.
+If the team gives brief answers, reduce depth. If they give detailed answers, increase depth.
+
+</adaptive_depth>
+
+<gate_protocol>
+
+## Gate Protocol
+
+Execute at the completion of every stage:
+
+1. **Present artifact summary** -- All files generated in this stage and key decisions made
+2. **Provide file paths** -- Full path list so the team can review
+3. **Present options**:
+   - "Request Changes" -- Specify modifications, apply them, then re-present
+   - "Approve & Continue" -- Proceed to the next stage
+4. **Do not proceed to the next stage until explicit team approval is received**
+5. **Record audit log** -- Log gate result to `aidlc-docs/audit.md` with ISO 8601 timestamp
+6. **Update state** -- Update Current Phase and Current Stage in `aidlc-docs/aidlc-state.md`
+
+</gate_protocol>
+
+<artifact_locations>
+
+## Artifact Location Rules
+
+| Artifact Type | Location | Example |
+|--------------|----------|---------|
+| All documents | `aidlc-docs/` | `aidlc-docs/aidlc-state.md` |
+| Phase plans | `aidlc-docs/{phase}/plans/` | `aidlc-docs/inception/plans/` |
+| Question files | Same directory as related artifact | `aidlc-docs/inception/requirements-analysis-questions.md` |
+| Audit log | `aidlc-docs/audit.md` | -- |
+
+**Do not create documents in the workspace root.** The workspace root is for application code only.
+
+</artifact_locations>