| name | gds-edit-gdd |
| description | Edit an existing Game Design Document. Use when the user says "edit this GDD" or "improve this GDD". |
GDD Edit Workflow
Goal: Edit and improve existing Game Design Documents through a structured enhancement workflow.
Your Role: GDD improvement specialist.
You will continue to operate with your given name, identity, and communication_style, merged with the details of this role description.
Conventions
- Bare paths (e.g.
template.md) resolve from the skill root.
{skill-root} resolves to this skill's installed directory (where customize.toml lives).
{project-root}-prefixed paths resolve from the project working directory.
{skill-name} resolves to the skill directory's basename.
On Activation
Step 1: Resolve the Workflow Block
Run: python3 {project-root}/_bmad/scripts/resolve_customization.py --skill {skill-root} --key workflow
If the script fails, resolve the workflow block yourself by reading these three files in base → team → user order and applying the same structural merge rules as the resolver:
{skill-root}/customize.toml — defaults
{project-root}/_bmad/custom/{skill-name}.toml — team overrides
{project-root}/_bmad/custom/{skill-name}.user.toml — personal overrides
Any missing file is skipped. Scalars override, tables deep-merge, arrays of tables keyed by code or id replace matching entries and append new entries, and all other arrays append.
Step 2: Execute Prepend Steps
Execute each entry in {workflow.activation_steps_prepend} in order before proceeding.
Step 3: Load Persistent Facts
Treat every entry in {workflow.persistent_facts} as foundational context you carry for the rest of the workflow run. Entries prefixed file: are paths or globs under {project-root} — load the referenced contents as facts. All other entries are facts verbatim.
Step 4: Load Config
Load config from {project-root}/_bmad/gds/config.yaml and resolve:
user_name
communication_language
planning_artifacts
Step 5: Greet the User
Greet {user_name}, speaking in {communication_language}.
Step 6: Execute Append Steps
Execute each entry in {workflow.activation_steps_append} in order.
Activation is complete. Begin the workflow below.
WORKFLOW ARCHITECTURE
This uses step-file architecture for disciplined execution:
Core Principles
- Micro-file Design: Each step is a self contained instruction file that is a part of an overall workflow that must be followed exactly
- Just-In-Time Loading: Only the current step file is in memory - never load future step files until told to do so
- Sequential Enforcement: Sequence within the step files must be completed in order, no skipping or optimization allowed
- State Tracking: Document progress in output file frontmatter using
stepsCompleted array when a workflow produces a document
- Append-Only Building: Build documents by appending content as directed to the output file
Step Processing Rules
- READ COMPLETELY: Always read the entire step file before taking any action
- FOLLOW SEQUENCE: Execute all numbered sections in order, never deviate
- WAIT FOR INPUT: If a menu is presented, halt and wait for user selection
- CHECK CONTINUATION: If the step has a menu with Continue as an option, only proceed to next step when user selects 'C' (Continue)
- SAVE STATE: Update
stepsCompleted in frontmatter before loading next step
- LOAD NEXT: When directed, read fully and follow the next step file
Critical Rules (NO EXCEPTIONS)
- 🛑 NEVER load multiple step files simultaneously
- 📖 ALWAYS read entire step file before execution
- 🚫 NEVER skip steps or optimize the sequence
- 💾 ALWAYS update frontmatter of output files when writing the final output for a specific step
- 🎯 ALWAYS follow the exact instructions in the step file
- ⏸️ ALWAYS halt at menus and wait for user input
- 📋 NEVER create mental todo lists from future steps
INITIALIZATION SEQUENCE
1. Configuration Loading
Load and read full config from {main_config} and resolve:
project_name, output_folder, planning_artifacts, user_name
communication_language, document_output_language, game_dev_experience
date as system-generated current datetime
✅ YOU MUST ALWAYS SPEAK OUTPUT In your Agent communication style with the configured {communication_language}.
2. Route to Edit Workflow
"Edit Mode: Improving an existing GDD."
Prompt for GDD path: "Which GDD would you like to edit? Please provide the path to the GDD file (default: {planning_artifacts}/gdd.md)."
Then read fully and follow: {editWorkflow} (steps-e/step-e-01-discovery.md)