diff --git a/.custodian-brief.md b/.custodian-brief.md
index 48f375b..7309eb3 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,34 +2,22 @@
 # Custodian Brief — markitect-tool
 
 **Domain:** markitect  
-**Last synced:** 2026-05-04 08:53 UTC  
+**Last synced:** 2026-05-04 09:26 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### Internal Extension Framework and Canonical Processing Model
-Progress: 2/9 done  |  workstream_id: `5eea103f-f584-4360-b7e3-c5b09a4814bd`
+### Runtime Context, Form, and Assessment Engines
+Progress: 0/8 done  |  workstream_id: `7918687e-2364-46b1-ab7e-65aa77cb8449`
 
 **Open tasks:**
-- · Define canonical processing model  `8c88b9a7`
-- · Implement extension descriptors and registries  `3fb2fe81`
-- · Add callback hooks and execution lifecycle  `be8f2056`
-- · Refactor query engines behind registry  `0226c1d1`
-- · Refactor processors and local backend as registered extensions  `a966dcbb`
-- · Refactor CLI composition to reduce central wiring  `3e88ca62`
-- · Document extension authoring conventions  `848e2a5e`
-
-### Document Function Layer
-Progress: 0/8 done  |  workstream_id: `f82e74c4-d349-4e9e-80cd-10c0c6d9545d`
-
-**Open tasks:**
-- · Define function model and vocabulary  `13ddfdbb`
-- · Design Markdown-native call syntax  `58166792`
-- · Add function registry and adapter boundary  `06196bde`
-- · Implement pure deterministic function execution  `986121f0`
-- · Add chaining and data binding semantics  `94bb131c`
-- · Add contract-aware function validation  `899d361f`
-- · Define capability and policy gates  `2a51b42c`
+- · P5.1 - Define runtime context model  `e24e6238`
+- · P5.2 - Implement context resolver API and CLI input  `d180bb6d`
+- · P5.3 - Implement field prefill and validation runtime  `b954984a`
+- · P5.4 - Implement form state model  `cccdf868`
+- · P5.5 - Implement dynamic rules  `6e420e1e`
+- · P5.6 - Define LLM assessment execution interface  `24b22b3a`
+- · P5.7 - Add assessment runner and cache boundary  `b09b77e2`
 - … and 1 more open tasks
 
 ### Markdown Dataflow Pipeline Workflows
@@ -56,6 +44,19 @@ Progress: 0/6 done  |  workstream_id: `f36acbc9-881d-46f2-9181-67de228df0c2`
 - · P9.5 - Add rule policy adapter design  `752f1962`
 - · P9.6 - Add decision logs and explainability  `990f01fa`
 
+### Document Function Layer
+Progress: 0/8 done  |  workstream_id: `f82e74c4-d349-4e9e-80cd-10c0c6d9545d`
+
+**Open tasks:**
+- · Define function model and vocabulary  `13ddfdbb`
+- · Design Markdown-native call syntax  `58166792`
+- · Add function registry and adapter boundary  `06196bde`
+- · Implement pure deterministic function execution  `986121f0`
+- · Add chaining and data binding semantics  `94bb131c`
+- · Add contract-aware function validation  `899d361f`
+- · Define capability and policy gates  `2a51b42c`
+- … and 1 more open tasks
+
 ### Agent Working Memory Context Cache
 Progress: 0/6 done  |  workstream_id: `6269f338-4f5c-40ee-90e5-0371f5c3874c`
 
@@ -67,19 +68,6 @@ Progress: 0/6 done  |  workstream_id: `6269f338-4f5c-40ee-90e5-0371f5c3874c`
 - · P8.5 - Add summary layers  `4d1cf970`
 - · P8.6 - Add CLI commands  `2f18386c`
 
-### Runtime Context, Form, and Assessment Engines
-Progress: 0/8 done  |  workstream_id: `7918687e-2364-46b1-ab7e-65aa77cb8449`
-
-**Open tasks:**
-- · P5.1 - Define runtime context model  `e24e6238`
-- · P5.2 - Implement context resolver API and CLI input  `d180bb6d`
-- · P5.3 - Implement field prefill and validation runtime  `b954984a`
-- · P5.4 - Implement form state model  `cccdf868`
-- · P5.5 - Implement dynamic rules  `6e420e1e`
-- · P5.6 - Define LLM assessment execution interface  `24b22b3a`
-- · P5.7 - Add assessment runner and cache boundary  `b09b77e2`
-- … and 1 more open tasks
-
 ---
 ## MCP Orientation (when available)