diff --git a/CONTEXT.md b/CONTEXT.md
index e83403c..1e86424 100644
--- a/CONTEXT.md
+++ b/CONTEXT.md
@@ -2,7 +2,7 @@
 
 > Relevant knowledge from OpenBrain.
 
-### 1. go-session [convention] (score: 0.636)
+## 1. go-session [convention] (score: 0.636)
 
 Documentation
 
@@ -10,14 +10,14 @@ Documentation
 - `/Users/snider/Code/go-session/docs/development.md` — prerequisites, build/test commands, test patterns, coding standards
 - `/Users/snider/Code/go-session/docs/history.md` — completed phases, known limitations, future considerations
 
-### 2. go-session [service] (score: 0.604)
+## 2. go-session [service] (score: 0.604)
 
 [go-session] Pages
 
 - [[Session-Format]] -- JSONL structure, parsing logic, and event types
 - [[Rendering]] -- HTML timeline and MP4 video output
 
-### 3. go-session [service] (score: 0.563)
+## 3. go-session [service] (score: 0.563)
 
 [go-session] Core Types
 
@@ -45,7 +45,7 @@ type Event struct {
 }
 ```
 
-### 4. go-session [service] (score: 0.560)
+## 4. go-session [service] (score: 0.560)
 
 [go-session] Installation
 
@@ -53,7 +53,7 @@ type Event struct {
 go get forge.lthn.ai/core/go-session@latest
 ```
 
-### 5. go-session [service] (score: 0.557)
+## 5. go-session [service] (score: 0.557)
 
 [go-session] API Summary
 
@@ -65,7 +65,7 @@ go get forge.lthn.ai/core/go-session@latest
 | `RenderHTML(sess, path)` | Generate self-contained HTML timeline |
 | `RenderMP4(sess, path)` | Generate MP4 video via VHS (Charmbracelet) |
 
-### 6. go-session [service] (score: 0.536)
+## 6. go-session [service] (score: 0.536)
 
 [go-session] Prerequisites
 
@@ -73,7 +73,7 @@ go get forge.lthn.ai/core/go-session@latest
 go install github.com/charmbracelet/vhs@latest
 ```
 
-### 7. go-session [service] (score: 0.524)
+## 7. go-session [service] (score: 0.524)
 
 [go-session] Quick Start
 
@@ -103,7 +103,7 @@ func main() {
 }
 ```
 
-### 8. go-session [service] (score: 0.523)
+## 8. go-session [service] (score: 0.523)
 
 [go-session] Usage
 
@@ -118,7 +118,7 @@ if err := session.RenderMP4(sess, "output/session.mp4"); err != nil {
 }
 ```
 
-### 9. go-session [service] (score: 0.520)
+## 9. go-session [service] (score: 0.520)
 
 [go-session] Tape Configuration
 
@@ -135,7 +135,7 @@ Shell bash
 
 See also: [[Home]] | [[Session-Format]]
 
-### 10. go-session [service] (score: 0.509)
+## 10. go-session [service] (score: 0.509)
 
 [go-session] Rendering
 
diff --git a/RECENT.md b/RECENT.md
index 7e28fb2..0aaac1e 100644
--- a/RECENT.md
+++ b/RECENT.md
@@ -1,6 +1,7 @@
 # Recent Changes
 
-```
+```text
+55ceab4 refactor(error-handling): replace fmt.Errorf and errors.New with coreerr.E()
 a07e41a chore: add .core/ and .idea/ to .gitignore
 50d1c3f docs: add CLAUDE.md project instructions
 bc3cc42 docs: add human-friendly documentation
@@ -20,5 +21,4 @@ cb7b5de chore: sync workspace dependency versions
 8e91626 docs: mark Phase 3 timeline UI as complete
 9b32678 docs(todo): mark Phase 1+2 complete with commit hash a6fb934
 a6fb934 feat(parser): Phase 1+2 — parse stats, truncation detection, session analytics
-c798d9d docs: flesh out Phase 1+2 task specs for parser robustness and analytics
 ```
diff --git a/kb/Rendering.md b/kb/Rendering.md
index 7d897ae..f0a6686 100644
--- a/kb/Rendering.md
+++ b/kb/Rendering.md
@@ -92,7 +92,7 @@ if err := session.RenderMP4(sess, "output/session.mp4"); err != nil {
 
 The generated tape uses these defaults:
 
-```
+```text
 FontSize 16
 Width 1400
 Height 800
diff --git a/specs/TASK_PROTOCOL.md b/specs/TASK_PROTOCOL.md
index dd11c73..03db189 100644
--- a/specs/TASK_PROTOCOL.md
+++ b/specs/TASK_PROTOCOL.md
@@ -25,7 +25,7 @@ Separation of concerns:
 
 ## Directory Structure
 
-```
+```text
 doc/
 ├── TASK_PROTOCOL.md          # This file
 └── ...                       # Reference documentation
@@ -211,7 +211,7 @@ Human reviews verified task:
 
 ### For Implementation Agents
 
-```
+```text
 You are implementing TASK-XXX.
 
 1. Read the full task file
@@ -228,7 +228,7 @@ Your job is to do the work, not to verify it.
 
 ### For Verification Agents
 
-```
+```text
 You are verifying TASK-XXX.
 
 1. Read the full task file
@@ -249,7 +249,7 @@ You are the gatekeeper. Be thorough. Trust nothing the implementation agent said
 
 ## Status Flow
 
-```
+```text
 draft → ready → in_progress → needs_verification → verified → approved
                      ↑                    │
                      └────────────────────┘
@@ -341,7 +341,7 @@ Standard acceptance criteria:
 
 When phases are independent, fire agents simultaneously:
 
-```
+```text
 Human: "Implement phases 1-4 in parallel"
 
 Agent fires 4 Task tools simultaneously:
@@ -353,7 +353,7 @@ Agent fires 4 Task tools simultaneously:
 
 ### Agent Prompt Template
 
-```
+```text
 You are implementing Phase X of TASK-XXX: [Task Title]
 
 Read the task file at: tasks/TASK-XXX-feature-name.md
@@ -383,7 +383,7 @@ Do NOT mark acceptance criteria as passed — verification agent does that.
 
 ### Wave Execution Example
 
-```
+```text
 Wave 1 (parallel): Phases 1, 2, 3, 4
   ↓ (all complete)
 Wave 2 (parallel): Phases 5, 6, 7, 8
@@ -518,7 +518,7 @@ For large phased tasks, extend the schema:
 
 When implemented, the MCP endpoint will expose:
 
-```
+```text
 GET  /tasks                    # List all tasks with status
 GET  /tasks/{id}               # Get task details
 POST /tasks/{id}/claim         # Agent claims a task