adr

name	adr
description	Create, review, and manage Architecture Decision Records (ADRs) with auto-numbering, template detection, quality review, and index maintenance. Use when user mentions "ADR", "architecture decision", "document this decision", "create ADR", "review ADR", editing ADR files (docs/adr/, doc/adr/, .adr/), or discussing architectural choices and tradeoffs.
argument-hint	<action> [args] (create <title> | review <path> | status <number> <status> | list | supersede <old> <new> | index)

ADR Manager

Create and manage Architecture Decision Records following project conventions with automatic numbering and index maintenance.

Argument Parsing

When invoked explicitly with /adr <action>, parse the first word:

First word	Remaining args	Operation
create	<title>	Create a new ADR with the given title
review	<path>	Lightweight quality review of an ADR
status	<number> <status>	Transition ADR status with validation and side effects
list	(none)	List all ADRs (same as running adr_index.py --dry-run)
supersede	<old-number> <new-number>	Supersede an old ADR with a new one
index	(none)	Regenerate the README.md index
(empty)		Auto-detect from conversation context

If the first word doesn't match an action, treat the entire $ARGUMENTS as a title and default to create.

When auto-invoked (no explicit /adr command), detect the operation from conversation context as before.

Auto-Invoke Triggers

This skill automatically activates when:

1. Keywords: "ADR", "architecture decision", "document this decision", "record the decision"
2. Editing ADR files: Files in docs/adr/, doc/adr/, architecture/decisions/, .adr/
3. Discussing architectural choices: Framework selection, technology decisions, pattern choices

What This Skill Delivers

1. ADR Creation (Enhanced)

• Gather context from conversation, codebase, and existing ADRs
• Confirm decision topic with user before drafting
• Auto-detect project's ADR directory and template style
• Auto-number ADRs (scan existing, increment)
• Draft populated ADR with real content (not blank template)
• Always append Author's Notes section (2-5 items)
• Offer MADR 4.0 enhancements as optional additions
• Suggest /adr review <path> after creation

2. Directory Discovery

Search order for ADR directories:

1. docs/adr/
2. doc/adr/
3. architecture/decisions/
4. .adr/
5. Create docs/adr/ if none exists

3. Template Detection

Analyze existing ADRs to detect:

• Naming convention: NNNN-kebab-case-title.md or NNN-title.md
• Section structure: Status, Context, Decision, Consequences
• Optional sections: Decision Drivers, Pros/Cons, Confirmation

4. Index Maintenance

Automatically update README.md with ADR table:

Number	Title	Status	Date

5. Supersession Workflow

When replacing an ADR:

• Mark old ADR status as "Superseded by [ADR-NNNN]"
• Link new ADR with "Supersedes [ADR-NNNN]"
• Update README.md index

6. ADR Review

Lightweight quality check using the adr-critic agent:

1. Read ADR at given path (if empty, ask — suggest globbing ADR dirs)
2. Spawn adr-critic agent (subagent_type: "doc:adr-critic")
   • Pass: full ADR content
   • Instruct: "Read Author's Notes first as prioritized review targets"
3. Agent evaluates 4 dimensions, returns score + verdict + 3-5 findings
4. Present review to user
5. Verdicts: Approve | Needs improvement | Needs rethink
6. Suggest next steps based on verdict

7. Author's Notes (Confession)

Every ADR gets an ## Author's Notes section after Consequences:

• Shortcuts: What was simplified or hand-waved?
• Assumptions: What was believed but not verified?
• Uncertainties: Which parts had least information?

Target: 2-5 items. Be specific, reference ADR sections.

Lifecycle: Added on create (always) | Read by adr-critic as review targets | Stripped when Status → Accepted (via /adr status) | Preserved on Superseded | Refreshed on major rewrites.

8. Status Transitions

Dedicated command for changing ADR status with validation and side effects:

1. Find ADR by number, read current status
2. Validate transition — warn on unusual paths (allow but confirm):
   • Accepted → Proposed: "Going backwards — re-opening a decided matter"
   • → Accepted without prior /adr review: "Consider reviewing first"
   • → Superseded directly: "Use /adr supersede to link replacement"
3. Apply status change, handle side effects:
   • → Accepted: Strip ## Author's Notes section entirely
4. Update README.md index via adr_index.py

Valid statuses: Proposed | Accepted | Deprecated | Superseded

Core Template Sections

Required (Minimal)

• Status: Proposed | Accepted | Deprecated | Superseded
• Date: ISO 8601 format (YYYY-MM-DD)
• Context and Problem Statement: 2-3 sentences describing the situation
• Decision: What was decided and why
• Consequences: Positive and negative impacts
• Author's Notes: Shortcuts, assumptions, uncertainties (stripped on Accepted)

Optional Enhancements (MADR 4.0)

• Technical Story: Link to issue/spec (e.g., #123)
• Decision Drivers: Bulleted list of forces/concerns
• Decision Makers: Who made this decision
• Consulted: Stakeholders whose opinions were sought
• Informed: Stakeholders who need to know
• Considered Options: List of alternatives evaluated
• Pros and Cons: Detailed analysis per option
• Confirmation: How to validate the decision was implemented

Quick Start

Create New ADR

# Explicit subcommands:
/adr create Use PostgreSQL over MongoDB
/adr create Authentication approach for mobile apps

# Auto-invoke by saying:
"Document the decision to use PostgreSQL over MongoDB"
"Create an ADR for our authentication approach"
"I need to record why we chose React Query"

Review an ADR

# Explicit subcommand:
/adr review docs/adr/0005-use-postgresql-for-persistence.md

# Auto-invoke:
"Review ADR-0005 for decision quality"
"Check if our caching ADR has solid reasoning"

Supersede Existing ADR

# Explicit subcommand:
/adr supersede 5 12

# Auto-invoke:
"Supersede ADR-0005 with a new caching strategy"
"Replace our database decision ADR with the new approach"

Change Status

# Transition with validation and side effects:
/adr status 14 accepted
/adr status 7 deprecated

# Auto-strips Author's Notes when accepting
# Warns on unusual transitions (e.g., skipping review)

List and Index

/adr list
/adr index

Scripts

Located in ${CLAUDE_SKILL_DIR}/scripts/ directory, using uv for execution:

adr_create.py

uv run ${CLAUDE_SKILL_DIR}/scripts/adr_create.py --title "Use PostgreSQL for persistence"
uv run ${CLAUDE_SKILL_DIR}/scripts/adr_create.py --title "..." --template madr --create-dir

adr_index.py

uv run ${CLAUDE_SKILL_DIR}/scripts/adr_index.py --dir docs/adr
uv run ${CLAUDE_SKILL_DIR}/scripts/adr_index.py --dir docs/adr --dry-run

adr_supersede.py

uv run ${CLAUDE_SKILL_DIR}/scripts/adr_supersede.py --old 5 --new 12 --dir docs/adr

Output Examples

Proposed ADR (with Author's Notes)

# ADR-0012: Use PostgreSQL for Data Persistence

## Status
Proposed

## Date
2026-01-10

## Context and Problem Statement
We need a reliable database solution for our microservices architecture
that supports complex queries and ACID transactions.

## Decision
Chosen option: PostgreSQL, because it provides the best balance of
ACID compliance, query flexibility, and team familiarity.

## Consequences
**Positive:**
- Full ACID transaction support
- Mature ecosystem and tooling

**Negative:**
- Horizontal scaling requires more setup

## Author's Notes
- **Shortcut**: Did not benchmark PostgreSQL vs CockroachDB under our expected write load; relied on team experience instead
- **Assumption**: Assumed read replicas will handle 5x current read traffic based on similar projects, not our actual query patterns
- **Uncertainty**: License compatibility of pgvector extension with our Apache 2.0 project not verified

Accepted ADR (Author's Notes stripped)

# ADR-0012: Use PostgreSQL for Data Persistence

## Status
Accepted

## Date
2026-01-10

(same content, but ## Author's Notes section removed entirely)

Progressive Disclosure

• Level 2: WORKFLOW.md - Step-by-step methodology
• Level 3: EXAMPLES.md - Real-world ADR examples
• Level 4: TROUBLESHOOTING.md - Error handling

Related Resources

• MADR 4.0 Template: https://adr.github.io/madr/
• ADR GitHub Organization: https://github.com/adr