refactor: extract discover_inputs protocol from workflow.xml into co-located markdown

Convert the discover_inputs XML protocol (FULL_LOAD, SELECTIVE_LOAD,
INDEX_GUIDED strategies) into standalone markdown files placed alongside
the two workflows that use it (create-story, code-review). Replace
<invoke-protocol> tags with explicit file references. This decouples
the workflows from workflow.xml, enabling its deletion in a follow-up.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/bmm/workflows/4-implementation/code-review/discover-inputs.md

@@ -0,0 +1,88 @@
+# Discover Inputs Protocol
+
+**Objective:** Intelligently load project files (whole or sharded) based on the workflow's Input Files configuration.
+
+**Prerequisite:** Only execute this protocol if the workflow defines an Input Files section. If no input file patterns are configured, skip this entirely.
+
+---
+
+## Step 1: Parse Input File Patterns
+
+- Read the Input Files table from the workflow configuration.
+- For each input group (prd, architecture, epics, ux, etc.), note the **load strategy** if specified.
+
+## Step 2: Load Files Using Smart Strategies
+
+For each pattern in the Input Files table, work through the following substeps in order:
+
+### 2a: Try Sharded Documents First
+
+If a sharded pattern exists for this input, determine the load strategy (defaults to **FULL_LOAD** if not specified), then apply the matching strategy:
+
+#### FULL_LOAD Strategy
+
+Load ALL files in the sharded directory. Use this for PRD, Architecture, UX, brownfield docs, or whenever the full picture is needed.
+
+1. Use the glob pattern to find ALL `.md` files (e.g., `{planning_artifacts}/*architecture*/*.md`).
+2. Load EVERY matching file completely.
+3. Concatenate content in logical order: `index.md` first if it exists, then alphabetical.
+4. Store the combined result in a variable named `{pattern_name_content}` (e.g., `{architecture_content}`).
+
+#### SELECTIVE_LOAD Strategy
+
+Load a specific shard using a template variable. Example: used for epics with `{{epic_num}}`.
+
+1. Check for template variables in the sharded pattern (e.g., `{{epic_num}}`).
+2. If the variable is undefined, ask the user for the value OR infer it from context.
+3. Resolve the template to a specific file path.
+4. Load that specific file.
+5. Store in variable: `{pattern_name_content}`.
+
+#### INDEX_GUIDED Strategy
+
+Load index.md, analyze the structure and description of each doc in the index, then intelligently load relevant docs.
+
+**DO NOT BE LAZY** -- use best judgment to load documents that might have relevant information, even if there is only a 5% chance of relevance.
+
+1. Load `index.md` from the sharded directory.
+2. Parse the table of contents, links, and section headers.
+3. Analyze the workflow's purpose and objective.
+4. Identify which linked/referenced documents are likely relevant.
+   - *Example:* If the workflow is about authentication and the index shows "Auth Overview", "Payment Setup", "Deployment" -- load the auth docs, consider deployment docs, skip payment.
+5. Load all identified relevant documents.
+6. Store combined content in variable: `{pattern_name_content}`.
+
+**When in doubt, LOAD IT** -- context is valuable, and being thorough is better than missing critical info.
+
+---
+
+After applying the matching strategy, mark the pattern as **RESOLVED** and move to the next pattern.
+
+### 2b: Try Whole Document if No Sharded Found
+
+If no sharded matches were found OR no sharded pattern exists for this input:
+
+1. Attempt a glob match on the "whole" pattern (e.g., `{planning_artifacts}/*prd*.md`).
+2. If matches are found, load ALL matching files completely (no offset/limit).
+3. Store content in variable: `{pattern_name_content}` (e.g., `{prd_content}`).
+4. Mark pattern as **RESOLVED** and move to the next pattern.
+
+### 2c: Handle Not Found
+
+If no matches were found for either sharded or whole patterns:
+
+1. Set `{pattern_name_content}` to empty string.
+2. Note in session: "No {pattern_name} files found" -- this is not an error, just unavailable. Offer the user a chance to provide the file.
+
+## Step 3: Report Discovery Results
+
+List all loaded content variables with file counts. Example:
+
+```
+OK Loaded {prd_content} from 5 sharded files: prd/index.md, prd/requirements.md, ...
+OK Loaded {architecture_content} from 1 file: Architecture.md
+OK Loaded {epics_content} from selective load: epics/epic-3.md
+-- No ux_design files found
+```
+
+This gives the workflow transparency into what context is available.

src/bmm/workflows/4-implementation/code-review/workflow.md

@@ -81,7 +81,7 @@ Load config from `{project-root}/_bmad/bmm/config.yaml` and resolve:
     - Missing documentation of what was actually changed
   </action>
 
-  <invoke-protocol name="discover_inputs" />
+  <action>Read fully and follow `{installed_path}/discover-inputs.md` to load all input files</action>
   <action>Load {project_context} for coding standards (if exists)</action>
 </step>
 

src/bmm/workflows/4-implementation/create-story/discover-inputs.md

@@ -0,0 +1,88 @@
+# Discover Inputs Protocol
+
+**Objective:** Intelligently load project files (whole or sharded) based on the workflow's Input Files configuration.
+
+**Prerequisite:** Only execute this protocol if the workflow defines an Input Files section. If no input file patterns are configured, skip this entirely.
+
+---
+
+## Step 1: Parse Input File Patterns
+
+- Read the Input Files table from the workflow configuration.
+- For each input group (prd, architecture, epics, ux, etc.), note the **load strategy** if specified.
+
+## Step 2: Load Files Using Smart Strategies
+
+For each pattern in the Input Files table, work through the following substeps in order:
+
+### 2a: Try Sharded Documents First
+
+If a sharded pattern exists for this input, determine the load strategy (defaults to **FULL_LOAD** if not specified), then apply the matching strategy:
+
+#### FULL_LOAD Strategy
+
+Load ALL files in the sharded directory. Use this for PRD, Architecture, UX, brownfield docs, or whenever the full picture is needed.
+
+1. Use the glob pattern to find ALL `.md` files (e.g., `{planning_artifacts}/*architecture*/*.md`).
+2. Load EVERY matching file completely.
+3. Concatenate content in logical order: `index.md` first if it exists, then alphabetical.
+4. Store the combined result in a variable named `{pattern_name_content}` (e.g., `{architecture_content}`).
+
+#### SELECTIVE_LOAD Strategy
+
+Load a specific shard using a template variable. Example: used for epics with `{{epic_num}}`.
+
+1. Check for template variables in the sharded pattern (e.g., `{{epic_num}}`).
+2. If the variable is undefined, ask the user for the value OR infer it from context.
+3. Resolve the template to a specific file path.
+4. Load that specific file.
+5. Store in variable: `{pattern_name_content}`.
+
+#### INDEX_GUIDED Strategy
+
+Load index.md, analyze the structure and description of each doc in the index, then intelligently load relevant docs.
+
+**DO NOT BE LAZY** -- use best judgment to load documents that might have relevant information, even if there is only a 5% chance of relevance.
+
+1. Load `index.md` from the sharded directory.
+2. Parse the table of contents, links, and section headers.
+3. Analyze the workflow's purpose and objective.
+4. Identify which linked/referenced documents are likely relevant.
+   - *Example:* If the workflow is about authentication and the index shows "Auth Overview", "Payment Setup", "Deployment" -- load the auth docs, consider deployment docs, skip payment.
+5. Load all identified relevant documents.
+6. Store combined content in variable: `{pattern_name_content}`.
+
+**When in doubt, LOAD IT** -- context is valuable, and being thorough is better than missing critical info.
+
+---
+
+After applying the matching strategy, mark the pattern as **RESOLVED** and move to the next pattern.
+
+### 2b: Try Whole Document if No Sharded Found
+
+If no sharded matches were found OR no sharded pattern exists for this input:
+
+1. Attempt a glob match on the "whole" pattern (e.g., `{planning_artifacts}/*prd*.md`).
+2. If matches are found, load ALL matching files completely (no offset/limit).
+3. Store content in variable: `{pattern_name_content}` (e.g., `{prd_content}`).
+4. Mark pattern as **RESOLVED** and move to the next pattern.
+
+### 2c: Handle Not Found
+
+If no matches were found for either sharded or whole patterns:
+
+1. Set `{pattern_name_content}` to empty string.
+2. Note in session: "No {pattern_name} files found" -- this is not an error, just unavailable. Offer the user a chance to provide the file.
+
+## Step 3: Report Discovery Results
+
+List all loaded content variables with file counts. Example:
+
+```
+OK Loaded {prd_content} from 5 sharded files: prd/index.md, prd/requirements.md, ...
+OK Loaded {architecture_content} from 1 file: Architecture.md
+OK Loaded {epics_content} from selective load: epics/epic-3.md
+-- No ux_design files found
+```
+
+This gives the workflow transparency into what context is available.

src/bmm/workflows/4-implementation/create-story/workflow.md

@@ -220,8 +220,7 @@ Load config from `{project-root}/_bmad/bmm/config.yaml` and resolve:
   <critical>🔬 EXHAUSTIVE ARTIFACT ANALYSIS - This is where you prevent future developer fuckups!</critical>
 
   <!-- Load all available content through discovery protocol -->
-  <invoke-protocol
+  <action>Read fully and follow `{installed_path}/discover-inputs.md` to load all input files</action>
-    name="discover_inputs" />
   <note>Available content: {epics_content}, {prd_content}, {architecture_content}, {ux_content},
   {project_context}</note>