diff --git a/.custodian-brief.md b/.custodian-brief.md
index 257c2a7..45ceb98 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,11 +2,37 @@
 # Custodian Brief — shard-wiki
 
 **Domain:** whynot  
-**Last synced:** 2026-06-14 12:02 UTC  
+**Last synced:** 2026-06-14 16:28 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
+### computational / interactive-knowledge systems research
+Progress: 0/8 done  |  workstream_id: `5fc3911a-1c68-4826-bbd2-b892dec8f981`
+
+**Open tasks:**
+- · Literate Programming — Knuth's WEB / weave / tangle  `c252fccc`
+- · Mathematica Notebooks  `6e46ec45`
+- · Jupyter Notebooks  `3d35d58f`
+- · Processing.org and Processing.js  `0f54cb0e`
+- · Strudel.cc — live-coding REPL  `2b099639`
+- · Squeak Smalltalk  `50723598`
+- · Glamorous Toolkit — moldable development  `9e11efac`
+- … and 1 more open tasks
+
+### wiki-engine deep-dive batch (new-insight + git-forge + classic engines)
+Progress: 0/9 done  |  workstream_id: `56af8185-420f-4a56-9152-5c64fda7a3f3`
+
+**Open tasks:**
+- · Federated Wiki — federation model (fork / journal / happenings)  `347fa26d`
+- · Wikibase / Wikidata — RDF entity-statement knowledge graph  `23272f05`
+- · TiddlyWiki — the self-contained single-file wiki  `a0ab1aba`
+- · ikiwiki — compile-to-static, git-backed, distributed peer wikis  `5748d246`
+- · Gitea / GitLab / GitHub wikis — git-forge-hosted Markdown wikis  `9719ce23`
+- · Salesforce Quip — collaborative live docs + embedded spreadsheets  `3e55128a`
+- · Oddmuse — minimalist single-script Perl wiki  `581e0a96`
+- … and 2 more open tasks
+
 ### federation architecture design
 Progress: 0/16 done  |  workstream_id: `2af4c46d-cbfd-40ea-a94b-d9e60b0f9945`