Plan Briefing

Interactive walkthrough of a plan's reasoning, decisions, and solution shape. Designed for developers who need to understand a plan in 1-2 minutes instead of reading the full document.

Why This Exists

Plans answer "what to do" but bury "why." This skill bridges that gap with an interactive walkthrough.

Usage

/phx:brief                                    # Latest plan
/phx:brief .claude/plans/user-auth/plan.md    # Specific plan

Arguments

• $ARGUMENTS = Path to plan file (optional, auto-detects latest)

Mode Detection

Read the plan file and determine mode from phase statuses:

• All phases [PENDING] = Pre-work briefing (what WILL happen)
• Any phase [COMPLETED] or [IN_PROGRESS] = Post-work briefing (what WAS done and why)

Execution Flow

Step 1: Locate and Load Plan

1. If $ARGUMENTS has a path, use it

2. Otherwise, find latest plan:

   Use Glob to find .claude/plans/*/plan.md and pick the most recent.

3. If no plan found, tell user and suggest /phx:plan

4. Read the plan file

Step 2: Load Supporting Artifacts

Read what's available (don't fail if missing):

• .claude/plans/{slug}/summaries/consolidated.md (research summary)
• .claude/plans/{slug}/scratchpad.md (decisions, dead-ends)
• .claude/plans/{slug}/progress.md (work log, post-work only)

Step 3: Present Briefing Sections

Present ONE section at a time, wrapped in the visual briefing block (see ${CLAUDE_SKILL_DIR}/references/briefing-guide.md Visual Formatting).

The section MUST be emitted as visible response text BEFORE the AskUserQuestion call. Content composed only in thinking/reasoning is invisible to the user, and the question field is too short to carry it. If the user would see only a "Continue?" dialog, the section was never shown. Write the ★ Briefing block as normal output first, then ask: