diff --git a/.specstory/history/2026-02-18_23-39Z-character-migrator-workflow-integration.md b/.specstory/history/2026-02-18_23-39Z-character-migrator-workflow-integration.md
index 9a48258..e29527a 100644
--- a/.specstory/history/2026-02-18_23-39Z-character-migrator-workflow-integration.md
+++ b/.specstory/history/2026-02-18_23-39Z-character-migrator-workflow-integration.md
@@ -15290,3 +15290,325 @@ migbbody shapekeys apparently is experiencing the same issue where the action sl
---
+_**Agent (model default, mode Agent)**_
+
+Thought Process
+
+The user is saying that MigBBody shapekeys (run_mig_bbody_shapekeys) has an issue where "the action slot is not applied" - similar to something they may have experienced elsewhere (perhaps NLA or animation data where an action isn't being applied correctly). Let me look at the run_mig_bbody_shapekeys function to see how it handles the shape key action and what might be missing.
+Tool use: **read_file_v2** • Read file: T:\Dynamic-Link-Manager\ops\migrator.py
+
+
+Tool use: **ripgrep_raw_search**
+
+
+Parameters:
+
+```json
+{
+ "pattern": "shapekey|shape_key|action|animation_data",
+ "path": "T:\\Dynamic-Link-Manager\\ops\\migrator.py",
+ "caseInsensitive": false
+}
+```
+Additional data:
+
+```json
+{
+ "isPruned": true,
+ "pattern": "shapekey|shape_key|action|animation_data",
+ "path": "T:\\Dynamic-Link-Manager\\ops\\migrator.py",
+ "outputMode": "content",
+ "totalFiles": 1,
+ "totalMatches": 49,
+ "topFiles": [
+ {
+ "uri": "ops\\migrator.py",
+ "matchCount": 49
+ }
+ ]
+}
+```
+Status: **completed**
+
+
+
+
+
+---
+
+Thought Process
+
+I see. For MigNLA they added handling for Blender 4.4+ "slotted actions" - they copy `action_slot`, `last_slot_identifier`, `action_blend_type`, `action_extrapolation`, `action_influence` so the action slot is properly applied. For the base body shape keys, the code only does:
+- ob.data.shape_keys.animation_data_create() if no animation_data
+- Then finds an action by name (body_name + "Action", etc.) and sets ob.data.shape_keys.animation_data.action = action
+
+So it's not copying the action from the *original* base body - it's looking up an action by naming convention. And it's not copying the action_slot / slot-related props on the shape_keys' animation_data. So two potential issues:
+1. The action might need to come from orig_base.data.shape_keys.animation_data.action (copy from original base body) rather than (or in addition to) looking up by name.
+2. Even when we set .action, in Blender 4.4+ the "action slot" might need to be set (action_slot, last_slot_identifier, action_blend_type, etc.) for it to actually show/apply.
+
+Let me look at what MigNLA does for the action slot again to mirror that for shape_keys.animation_data.
+Tool use: **read_file_v2** • Read file: T:\Dynamic-Link-Manager\ops\migrator.py
+
+Thought Process
+
+So for shape keys we need to:
+1. Prefer copying the action (and slot) from the *original* base body's shape_keys.animation_data, not just look up by name.
+2. When setting the action on rep's shape_keys.animation_data, also set last_slot_identifier (before action), then action, then action_slot, then action_blend_type, action_extrapolation, action_influence.
+
+Let me update run_mig_bbody_shapekeys to:
+- Get orig_sk_ad = orig_base.data.shape_keys.animation_data if orig_base and orig_base.data.shape_keys
+- If orig_sk_ad and orig_sk_ad.action: use that action; also copy slot props (last_slot_identifier, action_slot, action_blend_type, action_extrapolation, action_influence) to rep's shape_keys.animation_data
+- Else: keep current fallback (look up action by name) but when assigning also try to copy slot-related props if they exist on the rep's animation_data (we might not have an origin to copy from, so we just set action and any slot props we can set generically - actually for fallback we only have the action by name, we don't have an "orig" shape_keys anim_data to copy slot from). So the main fix is: when we have orig_base and orig_base.data.shape_keys.animation_data with an action, use that action and copy all slot-related props from orig base body shape_keys to rep base body shape_keys. When we don't have that (name lookup path), we still set .action but we could try to set last_slot_identifier/action_slot if the rep's anim_data has those - but we'd have nothing to copy from. So the fix is: copy from orig base body shape_keys.animation_data when available (action + slot props), else fall back to name lookup and set action only.
+Tool use: **edit_file_v2** • Edit file: T:\Dynamic-Link-Manager\ops\migrator.py
+
+Thought Process
+
+When we don't have orig_sk_ad (no orig base body or no shape_keys on orig), we still look up action by name and set sk_ad.action = action, but we don't set any slot props (nothing to copy from). That's correct. Let me double-check: if action is set from name lookup, we still do sk_ad.action = action - yes, that's inside "if action:" and we do "sk_ad.action = action" unconditionally there. The "if orig_sk_ad" parts only add the slot props when we have an origin. Good.
+
+Tool use: **read_lints**
+
+
+Parameters:
+
+```json
+{
+ "paths": [
+ "T:\\Dynamic-Link-Manager\\ops\\migrator.py"
+ ]
+}
+```
+Result:
+
+```json
+{
+ "linterErrorsByFile": [
+ {
+ "relativeWorkspacePath": "T:\\Dynamic-Link-Manager\\ops\\migrator.py"
+ }
+ ]
+}
+```
+Status: **completed**
+
+
+
+
+
+---
+
+Thought Process
+
+Done. Summary for user.
+Tool use: **run_terminal_command_v2**
+
+
+Tool use: **glob_file_search**
+
+Status: **loading**
+
+
+
+
+
+---
+
+
+
+Tool use: **ripgrep_raw_search**
+
+Status: **loading**
+
+
+
+
+
+---
+
+
+
+---
+
+
+
+---
+
+
+Tool use: **run_terminal_command_v2**
+
+
+Tool use: **read_file_v2**
+
+Status: **loading**
+
+
+
+
+
+---
+
+
+
+Tool use: **ripgrep_raw_search**
+
+Status: **loading**
+
+
+
+
+
+---
+
+
+
+---
+
+
+
+---
+
+
+
+Tool use: **edit_file_v2** • Edit file: T:\Dynamic-Link-Manager\blender_manifest.toml
+
+Status: **loading**
+
+Tool use: **edit_file_v2** • Edit file: T:\Dynamic-Link-Manager\CHANGELOG.md
+
+Status: **loading**
+
+