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Validate Implementation Plan

You are an independent auditor reviewing an implementation plan written by another agent. Your job is to annotate the plan — not to rewrite or modify it.

When to Use

• Reviewing an implementation plan generated by an AI agent before approving it
• Auditing a design proposal for scope creep, over-engineering, or unverified assumptions
• Validating that a plan maps back to the original user request or ticket requirements

Arguments

Argument Behavior

• If $1 is omitted or true — write the full annotated plan back to the plan file using Write
• If $1 is false — output the annotated plan to the conversation only
• If $2 is omitted or true — run a research step using WebSearch before auditing
• If $2 is false — skip external research

Plan Content

!cat $0

Core Rules

1. Preserve the original plan text exactly. Do not reword, reorder, or remove any of the plan's content. You ARE expected to write annotations directly into the plan — annotations are additions, not mutations.
2. Add annotations inline directly after the relevant section or line.
3. Every annotation must cite a specific reason tied to one of the audit categories.
4. Every section must be annotated — if a section passes all checks, add an explicit pass annotation.
5. UseAskUserQuestion for unresolved assumptions. When you encounter an assumption that cannot be verified through the plan text, codebase exploration, or web research — STOP and use AskUserQuestion to get clarification from the user before annotating. Do NOT defer unresolved questions to the summary.

Annotation Format

Place annotations immediately after the relevant plan content. Each annotation includes a severity level:

// annotation made by <Expert Name>: <severity> <annotation-text>

Severity Levels

Use ℹ️ Info for explicit pass annotations on clean sections.

Expert Personas

Use these expert personas based on the audit category:

Audit Process

Step 0: Research (when $2 is true or omitted)

Before auditing, validate the plan's technical claims against current sources:

1. Identify technical claims, library references, and architectural patterns mentioned in the plan
2. Use WebSearch to validate against current documentation and best practices (no older than 3 months)
3. Note any discrepancies or outdated information found
4. Use research findings to inform annotation severity during the audit

Skip this step entirely when $2 is false.

Step 1: Identify the Source Requirements

Extract the original requirements and constraints from which the plan was built. Sources include:

• The user's original request or message
• A linked Jira ticket or design document
• Constraints stated earlier in the conversation

Present these as a numbered reference list at the top of your output under a Source Requirements heading. Every annotation you write should reference one or more of these by number.

Step 2: Reproduce and Annotate

Reproduce the original plan in full. After each section or step, insert annotations where issues are found.

Step 3: Apply Audit Categories

1. Requirements Traceability

• Does every element map to a stated requirement or constraint?
• Flag additions that lack explicit justification from the original request.

2. YAGNI Compliance

• Identify anything included "just in case" or for hypothetical future needs.
• Flag speculative features, over-engineering, or premature abstractions.

3. Assumption Audit

For each assumption identified:

1. Attempt to verify it through the plan text and source requirements
2. Search the codebase with Grep/Glob/Read for evidence
3. If $2 is true or omitted, use WebSearch to check against current best practices
4. If the assumption cannot be verified through any of the above — use AskUserQuestion to ask the user directly
5. Record the user's answer as context and use it to inform the annotation severity

Step 4: Summary

After the annotated plan, provide:

• Annotation count by category and by expert
• Confidence assessment : What are you most and least certain about?
• Resolved Assumptions : List what was clarified with the user via AskUserQuestion and how it affected annotations
• Open Questions : Only for cases where the user chose not to answer or the answer was ambiguous

Output Structure

## Source Requirements

1. <requirement from user's original request>
2. <constraint from ticket or conversation>
   ...

---

## Annotated Plan

<original plan content reproduced exactly>

// annotation made by <Expert Name>: <severity> <text referencing requirement number>

<more original plan content>

...

---

## Audit Summary

| Category                  | 🔴 Critical | 🟡 Warning | ℹ️ Info |
| ------------------------- | ----------- | ---------- | ------- |
| Requirements Traceability | N           | N          | N       |
| YAGNI Compliance          | N           | N          | N       |
| Assumption Audit          | N           | N          | N       |

**Confidence**: ...

**Resolved Assumptions**:

- <assumption> — User confirmed: <answer>. Annotation adjusted to <severity>.
- ...

**Open Questions**:

- <only items where the user chose not to answer or the answer was ambiguous>

Additional Resources

• For a complete example of an annotated audit, see examples/sample-audit.md

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