product-design

name	product-design
description	Interactive product/feature design orchestrator. Transforms fuzzy ideas into structured product briefs through collaborative exploration, iterative refinement, and visual prototyping. Adaptive phases detect design complexity and adjust depth.
user-invocable	true

Product Design Orchestrator

Interactive workflow for product and feature design -- from fuzzy idea to development-ready product brief. Phases adapt based on detected design characteristics (greenfield vs enhancement, simple vs complex, UI-focused vs backend). Uses a hybrid interaction architecture: agents for unbiased generative work, inline interactive phases for convergent and evaluative work. Visual companion renders HTML/CSS mockups in a browser for rich design feedback.

Initialization

BEFORE executing any phase, you MUST complete these steps:

Step 0: Session-reminder conflict resolution (decide ONCE)

Before doing anything else, settle this policy now and do not re-litigate it at any gate:

→ **MANDATORY GATE** — fires regardless of permission mode, session-reminders, or prior approval patterns. Invoke ask_user now. Proceeding without a user response is a protocol violation (orchestrator-patterns.md § 2 / § 2.1). / → MANDATORY GATE markers fire regardless of session-reminders, permission mode, or prior approval patterns. Auto / acceptEdits / bypassPermissions modes, reminders saying "work without stopping" / "continue without asking" / "minimize clarifying questions," and compaction summaries showing the user approving every prior gate do NOT exempt you from invoking ask_user at a gate. They apply only to your discretionary clarifications.

If you find yourself reasoning "the user has been approving everything, so I can skip this gate" or "auto-mode is on, so I should minimize questions" — that reasoning IS the failure mode. STOP and fire the gate.

Full framework rule: ../orchestrator-framework/references/orchestrator-patterns.md § 2 and § 2.1.

Step 1: Load Framework Patterns

Read the framework reference file NOW using the Read tool:

1. ../orchestrator-framework/references/orchestrator-patterns.md - Delegation rules, interactive mode, state schema, initialization, context passing, issue resolution

Step 2: Detect Design Context

If argument is a design task path (matches .maister/tasks/product-design/*):

• This is a resume — read orchestrator-state.yml from that path
• Determine current phase from completed_phases and resume from next phase
• If --from=PHASE provided, resume from that specific phase

If --research=<path> flag provided:

• Read research artifacts from specified path (report, synthesis, solution exploration)
• Copy relevant context to context/research-context/
• Set research_reference in state

Step 3: Initialize Workflow

1. Capture the clock: run date -u +"%Y-%m-%dT%H:%M:%SZ" via Bash NOW — you do NOT know the time from context. Every timestamp written this turn (created, updated, generated, phases[].started) uses this value. Date-only or T00:00:00Z values are the documented failure mode (orchestrator-patterns.md § 4 Timestamp Rule). Re-run date in later turns before writing timestamps.
2. Create Task Items: Use TaskCreate for all phases (see Phase Configuration), then set dependencies with TaskUpdate addBlockedBy
3. Create Task Directory: .maister/tasks/product-design/YYYY-MM-DD-task-name/
   • Create context/ folder with README.md instructing users to drop relevant files there (meeting transcripts, existing designs, spreadsheets, docs, PDFs, images)
   • Create analysis/ and outputs/ directories
4. Initialize State: Create orchestrator-state.yml with design context schema (see Domain Context section)
5. Set up Operator Dashboard (orchestrator-patterns.md § 8) — first read .maister/config.yml and set orchestrator.options.html_output (default true if the file/key is absent), orchestrator.options.mockup_format (default html), and derive orchestrator.options.visual_enabled: false when the --no-visual flag was passed OR mockup_format is ascii; otherwise true. (So mockup_format: ascii and --no-visual are equivalent; the flag is a per-run override.) When html_output is false, SKIP the rest of this step — no dashboard.html, no dashboard-data.js, no browser auto-open — and proceed. Otherwise: copy ../orchestrator-framework/assets/dashboard.html to the task root as dashboard.html, write the initial dashboard-data.js (all phases pending, task.type: "product-design"), then auto-open it in the user's browser ( / / per platform, passing the plain absolute filesystem path — NEVER a hand-built URL; on failure just print the path — never block). On resume: re-copy only if missing; regenerate from state; then auto-open it in the browser again (same opener as a new task — the OS focuses an already-open tab rather than duplicating).

Output:

Product Design Orchestrator Started

Task: [description]
Directory: [task-path]
Dashboard: open [task-path]/dashboard.html in a browser to monitor progress

Starting Phase 0: Initialize & Gather Context...

---

Operator Visibility (applies to every phase)

Config gate: these rules assume options.html_output is true (read from .maister/config.yml at init, default true). When false: skip the Dashboard-upkeep rule entirely (no dashboard files, no browser open, no rewrites) and the HTML-companions rule — do NOT invoke html-companion-writer at Phases 5/6/8 and do NOT pass html_style_guide_path anywhere; markdown artifacts are written as usual. The Artifact Summary Contract (§ 7 TL;DR blocks), phase_summaries in state, AND Phase 7 visual mockups (design deliverables, not report companions) all stay active either way.

Cross-cutting rules from orchestrator-patterns.md (same as the development and research orchestrators):

1. Artifact Summary Contract (§ 7): every artifact opens with TL;DR / Key Decisions / Open Questions & Risks. This applies to subagent prompts (solution-brainstormer, information-gatherer already comply) AND to the artifacts this orchestrator writes directly (problem-statement.md, personas.md, design-decisions.md, feature-spec.md, outputs/product-brief.md). At context extraction, lift decisions, risks, and artifacts into phase_summaries.[phase] — verbatim, never re-summarized.
2. Dashboard upkeep (§ 8): rewrite dashboard-data.js at every phase START (mark in_progress before executing), BEFORE firing every exit gate (register the finished phase's artifacts/summary/decisions/risks — the operator reviews them on the dashboard while answering; status stays in_progress until the gate passes), after every phase completion (including skipped phases 3/7, with reason), every gate decision, after each refinement-loop iteration that changes an artifact, and at finalization. Every rewrite starts with date -u (one call per turn). Register Phase 7 mockups as artifacts (analysis/mockups/{slug}.html — they ARE html; set both path and html to the mockup path).
3. HTML companions (§ 9) — delegated, because this orchestrator writes its hero artifacts INLINE (no producing subagent to attach a companion to). Right after each hero md is finalized, invoke the maister-html-companion-writer subagent (Task tool) to write its sibling .html: analysis/design-decisions.md (Phase 5), analysis/feature-spec.md (Phase 6), outputs/product-brief.md (Phase 8, after final approval). Pass md_path, html_style_guide_path (absolute path to ../orchestrator-framework/references/html-report-style.md), artifact_label, and report_suite (the sibling reports that exist, hrefs relative to the md's directory, for the breadcrumb). Register the returned html_path in phase_summaries.[phase].artifacts[].html so the dashboard hero cards link HTML first. Companion generation never blocks — on status: failed keep the md and continue. (analysis/alternatives.md already gets a companion from the solution-brainstormer subagent in Phase 4; / are secondary — companion them too if cheap, but the three hero artifacts are the priority.)

---

When to Use

Use for product and feature design: defining what to build before building it. Greenfield products, new features, enhancements, API designs, workflow designs.

DO NOT use for: Implementation tasks (use /maister-development), pure research (use /maister-research), bug fixes, performance optimization, migrations.

When to use this vs development orchestrator: If you need to explore the problem space, evaluate alternatives, and define requirements interactively before any code is written, use this. If you already know what to build and need to plan and execute, use development.

---

Local References

File	When to Read	Purpose
references/characteristic-detection.md	Phase 0 (before detecting characteristics)	Detection signals, phase activation matrix, adaptive depth scaling
references/interaction-patterns.md	Phase 2 (before first interactive phase)	Cognitive modes, refinement loop pattern, ask_user option design

Phase 7 (Visual Prototyping) delegates to the maister-mockup-studio skill, which owns the visual companion server and its reference docs (skills/mockup-studio/references/visual-companion.md, design-resource-discovery.md).

---

Phase Configuration

Phase	content	activeForm	Activation	Agent/Skill
0	"Initialize, gather context & detect characteristics"	"Gathering context & detecting characteristics"	Always	Direct (interactive)
1	"Synthesize all context sources"	"Synthesizing context"	Always (scope adapts)	codebase-analyzer (if enhancement), information-gatherer (if mini-research)
2	"Explore problem space"	"Exploring problem space"	Always (depth adapts)	Direct (interactive)
3	"Explore users & personas"	"Exploring users & personas"	When is_greenfield OR is_complex	Direct (interactive)
4	"Generate design alternatives"	"Generating design alternatives"	Always	solution-brainstormer (Task tool)
5	"Converge on design direction"	"Converging on direction"	Always	Direct (interactive)
6	"Specify features section-by-section"	"Specifying features"	Always (depth adapts)	Direct (interactive)
7	"Create visual prototypes"	"Creating visual prototypes"	When is_ui_focused	mockup-studio (Skill tool)
8	"Review & hand off product brief"	"Reviewing & assembling brief"	Always	Direct (interactive)

---

Process Flow Graph

digraph product_design_orchestrator {
    rankdir=TB;
    node [fontname="Helvetica", fontsize=10];
    edge [fontname="Helvetica", fontsize=9];

    // Entry
    entry [label="Entry", shape=doublecircle, style=bold];

    // Phases
    p0 [label="Phase 0:\nInitialize, Gather\nContext & Detect\nCharacteristics", shape=box];
    p1 [label="Phase 1:\nContext Synthesis", shape=box];
    p2 [label="Phase 2:\nProblem Exploration", shape=box];
    p3 [label="Phase 3:\nUser & Persona\nExploration", shape=box];
    p4 [label="Phase 4:\nIdea Generation\n(agent, unbiased)", shape=box];
    p5 [label="Phase 5:\nIdea Convergence", shape=box];
    p6 [label="Phase 6:\nFeature Specification", shape=box];
    p7 [label="Phase 7:\nVisual Prototyping", shape=box];
    p8 [label="Phase 8:\nReview & Handoff", shape=box];

    // Decision diamonds
    d_refine_problem [label="user satisfied\nwith problem\nstatement?", shape=diamond];
    d_personas [label="is_greenfield\nOR is_complex?", shape=diamond];
    d_refine_convergence [label="user satisfied\nwith direction?", shape=diamond];
    d_refine_spec [label="section\napproved?", shape=diamond];
    d_ui [label="is_ui_focused?", shape=diamond];
    d_refine_mockup [label="mockup\napproved?", shape=diamond];

    // Exit
    end_node [label="End", shape=doublecircle, style=bold];

    // Flow
    entry -> p0;
    p0 -> p1 [label="Pause:\nconfirm characteristics"];

    // Phase 1 always runs (adapts scope)
    p1 -> p2 [label="Pause"];

    // Phase 2 iterative refinement loop
    p2 -> d_refine_problem;
    d_refine_problem -> p2 [label="refine\n(max 3)"];
    d_refine_problem -> d_personas [label="approved"];

    // Phase 3 conditional activation
    d_personas -> p3 [label="true"];
    d_personas -> p4 [label="false\n(skip personas)"];

    // Phase 3 to Phase 4
    p3 -> p4 [label="Pause"];

    // Phase 4 (agent, non-interactive) to Phase 5
    p4 -> p5 [label="AUTO-CONTINUE"];

    // Phase 5 iterative refinement loop
    p5 -> d_refine_convergence;
    d_refine_convergence -> p4 [label="explore more\n(re-generate)"];
    d_refine_convergence -> p5 [label="refine direction\n(max 3)"];
    d_refine_convergence -> p6 [label="approved"];

    // Phase 6 section-by-section with refinement
    p6 -> d_refine_spec;
    d_refine_spec -> p6 [label="revise section\n(max 3 per section)"];
    d_refine_spec -> d_ui [label="all sections\napproved"];

    // Phase 7 conditional on UI focus
    d_ui -> p7 [label="true"];
    d_ui -> p8 [label="false"];

    // Phase 7 mockup refinement loop
    p7 -> d_refine_mockup;
    d_refine_mockup -> p7 [label="revise mockup\n(max 3)"];
    d_refine_mockup -> p8 [label="approved"];

    // Phase 8 to end
    p8 -> end_node [label="Pause:\nfinal approval"];
}

---

Workflow Phases

Phase 0: Initialize & Gather Context

Purpose: Create task directory, detect design characteristics, gather user-supplied context (files, URLs, mini-research topics) Execute: Direct, interactive

1. Create task directory structure (see Task Structure section) 1b. Discover project documentation: Read .maister/docs/INDEX.md (if exists), extract ALL file paths from the "Project Documentation" section — includes predefined docs AND any user-added project docs. Read discovered project docs. Store paths in design_context.project_doc_paths and brief summary in design_context.project_context_summary.

2. Read references/characteristic-detection.md NOW using the Read tool

3. Analyze user's description to detect the 6 design characteristics: is_greenfield, is_enhancement, is_ui_focused, is_backend, is_complex, is_simple

4. Derive complexity_level from characteristics: "simple" (if is_simple), "complex" (if is_complex or is_greenfield), "standard" (otherwise)

5. ask_user — "Do you have additional context to provide?" with options:

   • "I have files to add (I'll drop them in the context/ folder)"
   • "I have external links/URLs to reference"
   • "I need specific topics researched from the web"
   • "Multiple of the above"
   • "No additional context — let's proceed"

6. Based on response:

   • Files: Instruct user to drop files in [task-path]/context/. Wait for confirmation. Read and catalog files.
   • URLs: Collect URLs via ask_user (one question, user provides list). Store in design_context.collected_urls.
   • Mini-research: Collect research topics via ask_user. Store in design_context.research_topics.

7. Present detected characteristics with rationale for user confirmation:

ask_user — "I detected these design characteristics. Please confirm or correct:" with options:

• "Correct, proceed with these"
• "Override: [list characteristic corrections]"
• "Let me explain my thinking"

8. Apply any user overrides to characteristics

Output: orchestrator-state.yml (characteristics, collected URLs, research topics, user files list) State: Set design_context.design_characteristics, design_context.complexity_level, design_context.collected_urls, design_context.research_topics, design_context.user_files_list

→ MANDATORY GATE — fires regardless of permission mode, session-reminders, or prior approval patterns. Invoke ask_user now. Proceeding without a user response is a protocol violation (orchestrator-patterns.md § 2 / § 2.1).

---

Phase 1: Context Synthesis

Phase gate: Confirm Phase 0 completion in this conversation. If you cannot point to its call ID, STOP and fire that gate now. State updates (completed_phases, TaskUpdate) without a corresponding ask_user call are protocol violations — never paper over a missed gate by updating state.

Purpose: Synthesize ALL context sources into a unified design context document that informs all downstream phases Execute: Skill/Agent + Direct (adapts based on characteristics) Resume check: If analysis/design-context.md exists, skip to Phase 2

For enhancements (is_enhancement = true):

ANTI-PATTERN -- DO NOT DO THIS:

• "Let me analyze the codebase..." -- STOP. Delegate to codebase-analyzer.
• "I'll look through the project..." -- STOP. Delegate to codebase-analyzer.

INVOKE NOW -- Skill tool call:

1. Skill tool - maister-codebase-analyzer (to understand existing product context, tech stack, UI patterns)

SELF-CHECK: Did you invoke the Skill tool with maister-codebase-analyzer? Or did you start reading project files yourself? If the latter, STOP and invoke the Skill tool.

POST-SKILL CONTINUATION: After codebase-analyzer returns control:

1. Read orchestrator-state.yml to confirm you are the orchestrator
2. Extract codebase analysis summary for context synthesis

For all tasks (both greenfield and enhancement):

2. Read all files in context/ folder (PDFs, images, docs — whatever the user provided)

3. Fetch external links collected in Phase 0 using WebFetch tool for each URL in design_context.collected_urls

4. If design_context.research_topics is non-empty: launch information-gatherer agents for each topic

   ANTI-PATTERN -- DO NOT DO THIS:

   • "Let me research that topic..." -- STOP. Delegate to information-gatherer.
   • "I'll look that up..." -- STOP. Delegate to information-gatherer.

   INVOKE NOW -- Task tool call (parallel, one per topic): Task tool - maister-information-gatherer subagent per research topic

   Context to pass: research topic, scope constraints, task_path

   SELF-CHECK: Did you invoke the Task tool with information-gatherer for each research topic? Or did you start searching yourself? If the latter, STOP and invoke the Task tool.

5. Synthesize ALL sources into analysis/design-context.md:

   • Project documentation: vision, roadmap, tech stack, architecture, and any user-added project docs (from design_context.project_doc_paths discovered in Phase 0)
   • Codebase summary (if enhancement): tech stack, UI patterns, existing features, data models
   • User-supplied context summary: key takeaways from each file/link
   • Mini-research findings: relevant discoveries from web research
   • Cross-reference insights: connections between sources
   • Implications for design: what the context means for the design task

6. ask_user — "Context synthesis complete. Key findings: [2-3 bullet summary]. Any corrections or additions before we explore the problem space?"

Output: analysis/design-context.md State: Update phase_summaries.context_synthesis

→ MANDATORY GATE — fires regardless of permission mode, session-reminders, or prior approval patterns. Invoke ask_user now. Proceeding without a user response is a protocol violation (orchestrator-patterns.md § 2 / § 2.1).

---

Phase 2: Problem Exploration

Phase gate: Confirm Phase 1 completion in this conversation. If you cannot point to its call ID, STOP and fire that gate now. State updates (completed_phases, TaskUpdate) without a corresponding ask_user call are protocol violations — never paper over a missed gate by updating state.

Purpose: Explore the problem space through structured questioning to produce a refined problem statement, constraints, and success criteria Execute: Direct, inline, interactive Resume check: If analysis/problem-statement.md exists, skip to Phase 3/4 decision

Read references/interaction-patterns.md NOW using the Read tool — exploration mode patterns

Read analysis/design-context.md for full context (not just state summary) — use it to inform context-aware questions.

Compute and persist Phase 2 routing: Read design_characteristics from orchestrator-state.yml. If is_greenfield OR is_complex → write next_phase: "Phase 3: User & Persona Exploration" to state. Else → write next_phase: "Phase 4: Idea Generation" to state.

Mode: Exploration (announce to user)

"Let's explore the problem space. I want to understand the core challenge before we start designing solutions..."

1. Ask context-aware exploration questions one at a time. Number of questions scales with complexity:

   • Simple: 2-3 questions
   • Standard: 4-6 questions
   • Complex / greenfield: 8-10 questions

2. After each answer, synthesize understanding before asking the next question. Show the user their previous answer was heard and integrated.

3. After exploration, transition to convergence mode and present a draft problem statement:

"Based on our exploration, here's what I think we've established..."

Present: problem statement, key constraints, success criteria

4. Enter iterative refinement loop (see references/interaction-patterns.md):

ask_user — with options:

• "Approve and continue"
• "Change the problem scope"
• "Change the constraints"
• "Change the success criteria"
• "Rethink the approach"
• "Let me explain my thinking"

5. If revision requested: incorporate feedback, present complete revised draft, re-ask. Track refinement_iterations.phase_2. After soft cap (2 for simple, 3 for standard/complex): shift options to encourage approval.

6. Write artifact: Write approved problem statement, constraints, success criteria, and key assumptions to analysis/problem-statement.md. This document captures the full exploration output and complements the condensed version in the product brief.

Output: analysis/problem-statement.md State: Update phase_summaries.problem_exploration with problem_statement, constraints, success_criteria

ask_user — "Problem space explored." Read next_phase from orchestrator-state.yml. If next phase is Phase 4, prepend "Skipping persona exploration (enhancement scope). " Ask "Continue to [next_phase value]?"

---

Phase 3: User & Persona Exploration

Phase entry self-check: Before executing this phase, locate the ask_user tool call from Phase 2 in this conversation. If you cannot point to its call ID, STOP and fire that gate now. State updates (completed_phases, TaskUpdate) without a corresponding ask_user call are protocol violations — never paper over a missed gate by updating state.

Purpose: Develop persona cards and user journeys for the design Execute: Direct, inline, interactive Resume check: If analysis/personas.md exists, skip to Phase 4

Skip if: NOT (is_greenfield OR is_complex)

Mode: Exploration -> Convergence (transition within phase)

1. Exploration: Ask about user types, their goals, pain points, discovery paths. Reference design context from Phase 1.

ask_user — one question at a time about user types and their needs

2. After sufficient exploration, transition to convergence:

"Based on what you've described, let me draft persona cards..."

3. Present persona cards (1-3 depending on complexity) with: name, role, goals, pain points, key journey

4. Enter iterative refinement loop:

ask_user — with options:

• "Approve personas and continue"
• "Change [persona name]"
• "Add another persona"
• "Remove a persona"
• "Let me explain my thinking"

5. Track refinement_iterations.phase_3. Apply soft cap.

6. Write artifact: Write approved persona cards and user journeys to analysis/personas.md. Include: persona name, role, goals, pain points, key journey (how they discover and use the feature), and any discovery path insights.

Output: analysis/personas.md State: Update phase_summaries.persona_exploration with personas, user_journeys

→ MANDATORY GATE — fires regardless of permission mode, session-reminders, or prior approval patterns. Invoke ask_user now. Proceeding without a user response is a protocol violation (orchestrator-patterns.md § 2 / § 2.1).

ask_user — "Personas defined. Continue to Idea Generation?"

---

Phase 4: Idea Generation

Phase entry self-check: Before executing this phase, locate the ask_user tool call from the preceding phase (Phase 3 if ran, or Phase 2) in this conversation. If you cannot point to its call ID, STOP and fire that gate now. State updates (completed_phases, TaskUpdate) without a corresponding ask_user call are protocol violations — never paper over a missed gate by updating state.

Purpose: Generate unbiased design alternatives using the solution-brainstormer agent Execute: Agent via Task tool (deliberately non-interactive to avoid anchoring bias) Resume check: If analysis/alternatives.md exists, skip to Phase 5

ANTI-PATTERN -- DO NOT DO THIS:

• "Let me brainstorm some approaches..." -- STOP. Delegate to solution-brainstormer.
• "Here are some alternatives I see..." -- STOP. Delegate to solution-brainstormer.
• "The obvious approach would be..." -- STOP. Anchoring bias. Delegate to solution-brainstormer.

INVOKE NOW -- Task tool call:

Task tool - maister-solution-brainstormer subagent

Context to pass (Pattern 7):

• task_path
• output_path: analysis/alternatives.md -- brainstormer MUST write to this exact path
• problem_statement (from Phase 2)
• constraints (from Phase 2)
• personas (from Phase 3, if available)
• design_context_summary (from Phase 1)
• Accumulated context: complexity_level, design_characteristics, phase_summaries (Phases 0-3)
• project_doc_paths (from design_context.project_doc_paths in state)

ARTIFACTS TO READ (instruct brainstormer to read these for full context):

• analysis/design-context.md (unified context)
• analysis/problem-statement.md (refined problem + constraints)
• analysis/personas.md (if exists — persona cards + journeys)

SELF-CHECK: After Task tool returns, verify analysis/alternatives.md exists and contains alternatives with trade-off analysis. If missing: re-invoke brainstormer with corrected context. If second attempt fails, ask_user to report failure and ask whether to retry or proceed with inline alternatives.

Output: analysis/alternatives.md State: Update phase_summaries.idea_generation with summary of alternatives generated

-> AUTO-CONTINUE -- Do NOT end turn, do NOT prompt user. Proceed immediately to Phase 5.

---

Phase 5: Idea Convergence

Purpose: Present brainstorming alternatives to user for evaluation and direction selection Execute: Direct, inline, interactive Resume check: If analysis/design-decisions.md exists, skip to Phase 6

Read references/interaction-patterns.md NOW using the Read tool — convergence mode patterns

Mode: Convergence (announce to user)

"The brainstormer generated several alternative approaches. Let me walk through each decision area so you can evaluate them..."

ANTI-PATTERN -- DO NOT DO THIS:

• Do NOT present all decision areas in a single summary table and ask one combined question. Each area MUST get its own detailed presentation and ask_user.
• Do NOT shortcut remaining areas after showing full detail for the first one. EVERY area gets the SAME level of detail.

1. Read analysis/alternatives.md
2. For each decision area sequentially: a. Area header: name and why this decision matters (1-2 sentences) b. Alternatives detail: For EVERY alternative, show name, description, pros, cons c. Recommendation: which alternative is recommended and why d. ask_user — alternatives as options (mark recommended with "(Recommended)") + "Need more info" + "Let me explain my thinking" e. Record choice, move to next area

SELF-CHECK before each ask_user: Did you output the full alternatives with pros/cons for THIS area? If you only showed a recommendation line, STOP and output the full detail.

3. After all areas resolved, present a brief summary of the chosen direction

4. Enter iterative refinement loop on the overall direction:

ask_user — with options:

• "Approve direction and continue to specification"
• "Refine the direction (adjust choices)"
• "Explore more (re-generate alternatives)" -> returns to Phase 4
• "Let me explain my thinking"

5. Track refinement_iterations.phase_5. If "Explore more" selected, return to Phase 4 for fresh brainstorming (reset Phase 5 iteration count).

6. Write artifact: Write the selected approach, rationale, alternatives considered (brief summary referencing analysis/alternatives.md for full detail), trade-offs accepted, and key design decisions per area to analysis/design-decisions.md.

7. HTML companion (skip when options.html_output is false): invoke maister-html-companion-writer (Task tool) for analysis/design-decisions.md (see Operator Visibility § 3). Register the returned html_path in phase_summaries.idea_convergence.artifacts.

Output: analysis/design-decisions.md (+ .html companion) State: Update phase_summaries.idea_convergence with selected_approach, trade_offs_accepted, key_decisions

→ MANDATORY GATE — fires regardless of permission mode, session-reminders, or prior approval patterns. Invoke ask_user now. Proceeding without a user response is a protocol violation (orchestrator-patterns.md § 2 / § 2.1).

ask_user — "Design direction approved. Continue to Feature Specification?"

---

Phase 6: Feature Specification

Phase entry self-check: Before executing this phase, locate the ask_user tool call from Phase 5 in this conversation. If you cannot point to its call ID, STOP and fire that gate now. State updates (completed_phases, TaskUpdate) without a corresponding ask_user call are protocol violations — never paper over a missed gate by updating state.

Purpose: Build a complete feature specification section-by-section using propose-and-refine Execute: Direct, inline, interactive Resume check: If analysis/feature-spec.md exists, skip to Phase 7/8 decision

Read analysis/design-decisions.md for selected approach details to inform specification drafts.

Compute and persist Phase 6 routing: Read design_characteristics.is_ui_focused from orchestrator-state.yml. If is_ui_focused → write next_phase: "Phase 7: Visual Prototyping" to state. Else → write next_phase: "Phase 8: Review & Handoff" to state.

Mode: Convergence (section-by-section propose-and-refine)

"Now let's define the specification in detail. I'll draft each section for you to review and refine..."

ANTI-PATTERN -- DO NOT DO THIS:

• Do NOT draft all specification sections at once and ask for approval. Each section MUST be proposed, reviewed, and approved individually.
• Do NOT delegate to specification-creator agent. The product brief is authored inline during interactive convergence, not delegated.

Specification sections scale with complexity (see references/characteristic-detection.md for depth scaling):

• Simple: 3-4 sections, ~20-50 lines each (captures what to build)
• Standard: 5-6 sections, ~50-100 lines each (what + key how decisions)
• Complex: 6-8 sections, ~100-300 lines each (what + how + edge cases + schemas/contracts — implementation-ready)

Section depth principle: Each section should contain enough detail that a developer could implement that aspect without asking clarifying questions. Before presenting a section for approval, self-check: "If I only had this section and the codebase, could I write the code?"

For complex designs, sections that define data models should list all entities with fields and types. Sections about APIs or interfaces should specify endpoints/methods with input/output shapes. Sections about workflows or state machines should enumerate all states and transitions with guards and side effects. Sections about integrations should specify connection points, data flow, and error handling.

For each section:

1. Draft section content at the depth appropriate to the complexity level

2. Present the draft section in full

3. Enter iterative refinement loop per section:

ask_user — with options:

• "Approve this section (implementation-ready)"
• "Add more detail (needs specifics for implementation)"
• "Change the scope"
• "Rethink this section"
• "Let me explain my thinking"

4. Track refinement_iterations.phase_6_sections.[section_name]. Apply soft cap per section.

5. On approval: IMMEDIATELY append the approved section to analysis/feature-spec.md. This makes the file the source of truth, not the conversation context. Do NOT wait until all sections are done to write.

6. After writing, briefly acknowledge and transition to the next section

7. After all sections are approved and written to file, present a brief specification summary

Spec depth verification (when is_complex = true):

After all sections are written to analysis/feature-spec.md, re-read the complete file and evaluate:

• Does each data model section list entities with fields and types?
• Does each API/interface section specify endpoints with input/output shapes?
• Does each workflow section enumerate states and transitions?
• Are integration points specified with connection details?

If gaps found: draft enrichment for thin sections and present to user for approval. Append enrichments to the file. If no gaps: proceed to Phase 7/8.

ANTI-PATTERN: Do NOT skip depth verification because "the user already approved." Approval confirms direction; depth verification ensures implementation-readiness.

HTML companion (skip when options.html_output is false): once analysis/feature-spec.md is complete (all sections written, depth verification passed), invoke maister-html-companion-writer (Task tool) for it (see Operator Visibility § 3). Register the returned html_path in phase_summaries.feature_specification.artifacts.

Output: analysis/feature-spec.md (+ .html companion) State: Update phase_summaries.feature_specification with spec_sections (individually approved), sections_count

ask_user — "Specification complete." Read next_phase from orchestrator-state.yml. If next phase is Phase 8, prepend "No UI prototyping needed (backend-focused design). " Ask "Continue to [next_phase value]?"

---

Phase 7: Visual Prototyping

Phase entry self-check: Before executing this phase, locate the ask_user tool call from Phase 6 in this conversation. If you cannot point to its call ID, STOP and fire that gate now. State updates (completed_phases, TaskUpdate) without a corresponding ask_user call are protocol violations — never paper over a missed gate by updating state.

Purpose: Generate visual mockups (HTML/CSS via the visual companion or ASCII fallback) for UI-focused designs Execute: Skill tool - maister-mockup-studio Resume check: If analysis/mockups/ contains any files, skip to Phase 8

Skip if: NOT is_ui_focused

Mockup generation is owned by the mockup-studio skill — it runs design-resource discovery, manages the visual companion server + browser, generates user-facing wireframes, runs the interactive refinement loop, and falls back to ASCII when the visual companion is unavailable. This orchestrator delegates and keeps its phase gate.

INVOKE NOW — Skill tool - maister-mockup-studio with:

• task_path: this task directory
• output_subdir: analysis/mockups
• format: html when options.visual_enabled is true, else ascii (so mockup_format: ascii / --no-visual force ASCII)
• iteration: full (multi-round interactive refinement — add/revise screens, re-POST)
• emit_index_rows: false
• context: feature spec sections from Phase 6, selected approach from Phase 5, design context from Phase 1, persona workflows from Phase 3 (if greenfield). Tell it to generate user-facing wireframes for the feature's actual screens (e.g. "Add New Allergy Form", "Prescribing Alert Modal") — never generic placeholders or technical diagrams.

mockup-studio keeps the visual companion alive for browsing during this phase; it returns mockup_files, format_used, and notes.

Output: analysis/mockups/ (mockup files) State: Update phase_summaries.visual_prototyping with mockup_references (= returned mockup_files), design_context.visual_companion status, and design_context.design_resources (from mockup-studio's discovery). Track refinement_iterations.phase_7.

→ MANDATORY GATE — fires regardless of permission mode, session-reminders, or prior approval patterns. Invoke ask_user now. Proceeding without a user response is a protocol violation (orchestrator-patterns.md § 2 / § 2.1).

ask_user — "Visual prototyping complete. Continue to Review & Handoff?"

---

Phase 8: Review & Handoff

Phase entry self-check: Before executing this phase, locate the ask_user tool call from the preceding phase in this conversation. If you cannot point to its call ID, STOP and fire that gate now. State updates (completed_phases, TaskUpdate) without a corresponding ask_user call are protocol violations — never paper over a missed gate by updating state.

Purpose: Assemble the layered product brief, present for final approval, suggest development handoff Execute: Direct, inline, interactive

Pre-assembly check (when is_complex = true):

Before assembling the product brief, re-read analysis/feature-spec.md and verify it is implementation-ready:

• Each section answers "what to build" AND "how to build it"
• Data models, interfaces, workflows, and integrations are specified with concrete details (not just categories or summaries)
• If gaps found: return to Phase 6 to enrich thin sections before assembling the brief

1. Assemble layered product brief from all phase artifacts. The product brief is a summary document for handoff — it references the detailed analysis documents for full context.

   Layer 0: Core Brief (always present):

   • Problem Statement (condensed from analysis/problem-statement.md)
   • Target Users (from analysis/personas.md if exists, or inline summary from Phase 2)
   • Feature Overview (condensed from analysis/feature-spec.md)
   • Constraints (from analysis/problem-statement.md)
   • Success Criteria (from analysis/problem-statement.md + analysis/feature-spec.md)
   • Acceptance Criteria (condensed from analysis/feature-spec.md)

   Layer 1: Persona Cards (if Phase 3 executed):

   • Per-persona summary (full detail in analysis/personas.md)

   Layer 2: Design Decisions (if Phase 5 explored alternatives):

   • Per-decision area summary (full detail in analysis/design-decisions.md, alternatives in analysis/alternatives.md)

   Layer 3: Mockup References (if Phase 7 executed):

   • Links to mockup files in analysis/mockups/
   • ASCII mockups inline if no visual companion was used

   References section (always present):

   • Links to all analysis documents produced during the design process

2. Write outputs/product-brief.md

3. Present complete brief for final review:

"Here's the assembled product brief. This is what will be handed off to development..."

4. Enter iterative refinement loop (final approval gate):

ask_user — with options:

• "Approve product brief"
• "Revise a section"
• "Add missing information"
• "Let me explain my thinking"

5. Shut down visual companion server (if it was used): curl -s -X POST http://localhost:[port]/shutdown

5b. HTML companion (skip when options.html_output is false) (after final approval, so it reflects the approved brief — do NOT regenerate on each refinement iteration): invoke maister-html-companion-writer (Task tool) for outputs/product-brief.md (see Operator Visibility § 3). Register the returned html_path in phase_summaries.review_handoff.artifacts and rewrite dashboard-data.js so the Product Brief hero card links the HTML.

6. On approval, update task status and suggest next steps.

   Output this message EXACTLY — do NOT invent alternative commands (e.g. /maister-feature:new does not exist):

Product brief approved and saved to: [task-path]/outputs/product-brief.md

To start development based on this design, clear context first or start a new session, then run:
/maister-development [task-path]

Output: outputs/product-brief.md State: Set task.status: completed, update phase_summaries.review_handoff

-> End of workflow

---

Domain Context (State Extensions)

Product-design-specific fields in orchestrator-state.yml:

design_context:
  design_characteristics:
    is_greenfield: false
    is_enhancement: false
    is_ui_focused: false
    is_backend: false
    is_complex: false
    is_simple: false
  complexity_level: "standard"  # "simple" | "standard" | "complex"
  collected_urls: []
  research_topics: []
  user_files_list: []
  refinement_iterations:
    phase_2: 0
    phase_3: 0
    phase_5: 0
    phase_6_sections: {}  # per-section tracking: {problem_statement: 1, features: 0, ...}
    phase_7: 0
  visual_companion:
    available: null   # null=not yet checked, true/false after check
    port: null
    pid: null
    fallback_to_ascii: false
  research_reference:
    path: null
    research_question: null
  phase_summaries:
    # Every entry also carries the shared base shape (orchestrator-patterns.md § 4):
    #   decisions: []   risks: []   artifacts: [{path, label, html}]
    context_synthesis: {summary: null, sources_count: 0}
    problem_exploration: {problem_statement: null, constraints: [], success_criteria: []}
    persona_exploration: {personas: [], user_journeys: []}
    idea_generation: {alternatives_count: 0, summary: null}
    idea_convergence: {selected_approach: null, trade_offs_accepted: [], key_decisions: []}
    feature_specification: {spec_sections: {}, sections_count: 0}
    visual_prototyping: {mockup_references: [], summary: null}
    review_handoff: {brief_layers: [], summary: null}

options:
  html_output: true  # Seeded from .maister/config.yml at init (default true). Gates dashboard + HTML companions.
  mockup_format: html  # Seeded from .maister/config.yml at init (default html). ascii ≡ --no-visual.
  visual_enabled: null  # Derived at init: false when --no-visual OR mockup_format==ascii; else true. Phase 7 passes format=html when true, ascii when false, to mockup-studio.

---

Task Structure

.maister/tasks/product-design/YYYY-MM-DD-task-name/
  orchestrator-state.yml           # Phase tracking + design characteristics
  dashboard.html                   # Operator dashboard (copied plugin asset — never model-generated)
  dashboard-data.js                # Dashboard data projection (rewritten per phase/gate/iteration)
  context/                         # User-supplied context materials (Phase 0)
    README.md                      # Instructions: "Drop files here for the design process"
  analysis/
    design-context.md              # Phase 1: unified synthesis of all context sources
    codebase-analysis.md           # Phase 1: codebase-analyzer output (if enhancement)
    problem-statement.md           # Phase 2: refined problem, constraints, success criteria
    personas.md                    # Phase 3: persona cards + user journeys (conditional)
    alternatives.md                # Phase 4: brainstormer alternatives
    alternatives.html              # Phase 4: HTML companion (from solution-brainstormer)
    design-decisions.md            # Phase 5: selected approach, rationale, trade-offs
    design-decisions.html          # Phase 5: HTML companion (html-companion-writer)
    feature-spec.md                # Phase 6: detailed feature specification
    feature-spec.html              # Phase 6: HTML companion (html-companion-writer)
    mockups/                       # Phase 7: visual prototypes
      mockup-*.html                # Visual companion rendered HTML
      ascii-mockups.md             # ASCII fallback
  outputs/
    product-brief.md               # Phase 8: final layered product brief
    product-brief.html             # Phase 8: HTML companion (html-companion-writer)

---

Auto-Recovery

Phase	Max Attempts	Strategy
0	1	Prompt user for clarification if description unclear
1	2	Re-invoke codebase-analyzer or information-gatherer with adjusted context
2	1	Re-phrase questions if user feedback unclear
3	1	Re-present personas with adjusted framing
4	2	Re-invoke solution-brainstormer with adjusted context
5	1	Re-read alternatives file, re-present decision areas
6	1	Re-draft section with different approach
7	2	Restart visual companion; fallback to ASCII after 2nd failure
8	1	Re-assemble brief from phase outputs

---

Command Integration

Invoked via:

• /maister-product-design [description] [--no-visual] [--research=PATH] (new)
• /maister-product-design [task-path] [--from=PHASE] (resume)

Flags:

Flag	Effect
--from=PHASE	Resume from specific phase
--research=PATH	Import research artifacts into context
--no-visual	Disable visual companion, use ASCII mockups only

Resume: Pass a task directory path to resume an existing design workflow. The orchestrator reads orchestrator-state.yml, determines the current phase from completed_phases, and continues.

Task directory: .maister/tasks/product-design/YYYY-MM-DD-task-name/

---

Integration with Other Workflows

Development Handoff

The product brief and mockups are consumed by the development orchestrator. Pass the product-design task path directly:

/maister-development .maister/tasks/product-design/YYYY-MM-DD-task-name/

The development orchestrator auto-detects the product-design task path during initialization (Step 4: Ingest Design Context) and copies:

• outputs/product-brief.md → analysis/design-context/brief.md
• analysis/mockups/* → analysis/design-context/mockups/

It then generates analysis/design-context/INDEX.md (screen/component inventory with stable IDs) and propagates design context through all subsequent phases via task_context.phase_summaries.design. The product brief's Layer 0 maps to requirements, design characteristics map to task characteristics, and mockup references become binding inputs to implementation: the implementation-planner attaches Visual References to UI task groups, task-group-implementer reads each mockup before coding, and Phase 12 produces a visual-fidelity report comparing rendered screens against source mockups.

See: skills/development/SKILL.md § "Design-Informed Development" for full propagation semantics.

Research Input

A completed research workflow can feed into product design:

/maister-product-design "Design feature X" --research=.maister/tasks/research/YYYY-MM-DD-research/

Research findings are imported into context/research-context/ and synthesized alongside other context sources in Phase 1.