docs: update content calendar with .agent.md authoring article

- Added 'Create Your First Custom Copilot Agent' to Week 1 Wednesday (March 4)
- Moved GitHub Copilot Vision from Week 1 to Week 7 Friday
- Created Copilot Customization series (3 parts)
- Finalized 12-week MWF publishing schedule (36 articles)
- Merged calendar decisions into .squad/decisions.md
- Updated orchestration logs and session logs
- Synchronized publishing metadata (filenames, tags, frontmatter)

Co-authored-by: Copilot <[email protected]>

Author: csharpfritz

.squad/.commit-msg

@@ -0,0 +1,11 @@
+docs: update content calendar with .agent.md authoring article
+
+- Added 'Create Your First Custom Copilot Agent' to Week 1 Wednesday (March 4)
+- Moved GitHub Copilot Vision from Week 1 to Week 7 Friday
+- Created Copilot Customization series (3 parts)
+- Finalized 12-week MWF publishing schedule (36 articles)
+- Merged calendar decisions into .squad/decisions.md
+- Updated orchestration logs and session logs
+- Synchronized publishing metadata (filenames, tags, frontmatter)
+
+Co-authored-by: Copilot <[email protected]>

.squad/agents/carla/history.md

@@ -40,3 +40,36 @@
 - `publishedDate` and `lastModified` in ISO format: YYYY-MM-DD
 - Featured flag recommended for Week 1 (highest-visibility slot)
 - Frontmatter guidance provided to writers for consistency across all 36 articles
+
+### Session 2: Calendar Revision Update
+
+**Schedule Changes (Sam's Revision):**
+- **New article added to Week 1 Wed (March 4):** "Create Your First Custom Copilot Agent: Authoring .agent.md Files for Specialized AI Assistants" (`create-your-first-custom-copilot-agent.md`)
+  - Category: GitHub Copilot | Difficulty: Beginner
+  - Tags: github-copilot, agents, agent-md, customization, getting-started
+  - Part of new "Copilot Customization" series
+- **GitHub Copilot Vision moved:** From Week 1 Wed (March 4) → Week 7 Fri (April 17, 2026)
+  - Original flex slot replaced with Vision article
+  - One flex slot remains at Week 11 Wed (May 13)
+- **Total articles maintained:** 36 (1 flex slot left)
+
+### Session 3: Calendar Revision Finalized & Approved (Feb 23, 2026)
+
+**Publishing Schedule Integration** — Synchronized with Sam's strategic calendar:
+- `.squad/decisions.md` updated with consolidated decision record
+- Orchestration logs documented for both Sam and Carla (2026-02-23T1622)
+- Session log created summarizing calendar revision and team coordination
+- All 36 articles verified as MWF dates with consistent metadata
+
+**Filename & Tag Standardization**:
+- `create-your-first-custom-copilot-agent.md` — Week 1 Wed (tags: github-copilot, agents, agent-md, customization, getting-started)
+- `copilot-vision-design-to-code.md` — Week 7 Fri (tags: github-copilot, vision, design, figma, workflow)
+- All other 34 articles maintained with kebab-case filenames and consistent tag vocabulary
+- Frontmatter guidance provided to writers for consistent metadata across all articles
+
+**Cross-Team Coordination**:
+- Diane (Writer): Weeks 1–4 prioritized with visual guides; .agent.md intro emphasizes step-by-step customization
+- Cliff (Researcher): Gap analysis for high-priority topics due mid-February
+- Norm & Scribe: Monitor product releases; pre-stage flex slot content (Week 11 Wed, May 13)
+
+**Readiness**: Publishing schedule now finalized and ready for content production handoff

.squad/agents/sam/history.md

@@ -162,3 +162,47 @@
 - **Content service**: `Web/Services/ContentService.cs` (parsing, caching, filtering)
 - **Upload helper**: `Shared/ContentUploadHelper.cs` (YAML parsing, image processing)
 - **ContentLoader**: `ContentLoader/Program.cs` (batch markdown → storage sync)
+
+## Calendar Revision — Week 1 & Series Architecture Update (Task from Jeffrey)
+
+**Added**: "Create Your First Custom Copilot Agent: Authoring .agent.md Files for Specialized AI Assistants"
+- **Placement**: Week 1 Wednesday, March 4, 2026 (Beginner, GitHub Copilot)
+- **Rationale**: Foundational article addressing gap in .github/agents/*.agent.md content. Pairs naturally with existing copilot-instructions.md and SKILL.md articles. Beginner-level intro helps readers understand agent customization before intermediate/advanced topics.
+- **Strategic positioning**: Front-loaded in Week 1 to establish credibility in agent/customization space early; removes friction for readers discovering custom agent workflows.
+
+**Displaced**: "GitHub Copilot Vision: From Wireframes to Code" shifted from Week 1 Wed to Week 7 Fri (April 17)
+- Vision is Intermediate (less foundational); .agent.md is Beginner and more strategic to lead customization series.
+
+**New Series**: "Copilot Customization" (3 parts)
+- Part 1: Create Your First Custom Copilot Agent (.agent.md) — Week 1 Wed
+- Part 2: Copilot Instructions (existing content, reference) — existing archive
+- Part 3: GitHub Copilot Skills (existing content, reference) — existing archive
+- Provides readers a cohesive learning path for understanding how to build tailored Copilot workflows.
+
+**Calendar impact**: 
+- Beginner articles: 13 → 14 (39% of 36 total)
+- GitHub Copilot articles: 17 → 18 (50% of 36 total)
+- All balance metrics remain healthy; no consecutive advanced articles; category rotation preserved.
+
+### Session 3: Calendar Revision Finalization & Decision Approval (Feb 23, 2026)
+
+**Scribe Integration** — Formalized calendar revision as team decision:
+- Orchestration logs created for both Sam and Carla (2026-02-23T1622)
+- Session log written documenting changes and team coordination
+- Decision merged into `.squad/decisions.md` (canonical record)
+- Inbox files archived (sam-content-calendar-UPDATED.md, carla-publishing-schedule.md)
+
+**Cross-Agent Coordination**:
+- Sam's calendar revision now integrated with Carla's publishing schedule (filenames, tags, metadata)
+- Both agents' history.md updated with session context
+- Team-wide handoff documented (Diane, Cliff, Norm, Scribe)
+
+**Validation Complete**:
+- All 36 articles verified as MWF dates
+- No violations of sequencing principles (beginner → intermediate → advanced, category rotation, series clustering)
+- High-priority gaps: 12/11 (100% + 1 foundational) by Week 4
+- Medium-priority gaps: 14/14 (100%) by Week 10
+- Lower-priority gaps: 7/7 (100%) by Week 12
+- 1 flex slot remaining (Week 11 Wed, May 13, 2026) for breaking news/community requests
+
+**Readiness**: Calendar now production-ready for team handoff to writers, researchers, and publishers

.squad/decisions.md

@@ -1,3 +1,69 @@
 # Decisions
 
 _Team decisions are recorded here. Append-only._
+
+---
+
+## Decision: Content Calendar Revision with .agent.md & Vision Rescheduling
+
+**Date:** 2026-02-23  
+**Agents:** Sam (Content Strategist), Carla (Publishing Scheduler)  
+**Status:** APPROVED & FINALIZED
+
+### Decision Summary
+Updated the 12-week MWF content calendar (March 2 – May 22, 2026) to include foundational .agent.md article and optimize sequencing. Total commitment remains 36 articles with 1 flex slot preserved.
+
+### Changes Approved
+1. **Added Article (Week 1 Wednesday, March 4)**
+   - Title: "Create Your First Custom Copilot Agent: Authoring .agent.md Files for Specialized AI Assistants"
+   - Category: GitHub Copilot | Difficulty: Beginner
+   - Filename: `create-your-first-custom-copilot-agent.md`
+   - Tags: github-copilot, agents, agent-md, customization, getting-started
+   - Rationale: Foundational gap in custom agent workflows; pairs with existing instructions/skills content; establishes credibility in Week 1
+
+2. **Rescheduled Article (Week 1 Wed → Week 7 Fri, April 17)**
+   - Title: "GitHub Copilot Vision: From Wireframes to Code — Design-to-Code Workflows"
+   - Category: GitHub Copilot | Difficulty: Intermediate
+   - Filename: `copilot-vision-design-to-code.md`
+   - Tags: github-copilot, vision, design, figma, workflow
+   - Rationale: Intermediate difficulty better suited to mid-calendar positioning; improves Week 1 beginner flow; maintains high-priority gap coverage by Week 7
+
+3. **New Series Created**
+   - **"Copilot Customization"** (3-part arc):
+     - Part 1: Create Your First Custom Copilot Agent (.agent.md) — Week 1 Wed
+     - Part 2: Copilot Instructions (existing reference) — archive
+     - Part 3: GitHub Copilot Skills (existing reference) — archive
+   - Provides coherent learning path for readers building tailored Copilot workflows
+
+### Impact Analysis
+- **Beginner Articles**: 13 → 14 (39% of 36 total)
+- **GitHub Copilot Coverage**: 17 → 18 (50% of 36 total)
+- **No violations** of sequencing rules (no 3+ consecutive advanced articles)
+- **Category rotation** preserved (Monday: GC, Wednesday: M365 or secondary, Friday: balanced)
+- **High-priority gap coverage**: All 11 critical gaps + 2 bonus topics addressed by Week 4 ✓
+- **Series clustering** maintained (5 thematic series, natural progression)
+
+### Publishing Metadata Finalized
+- All 36 articles verified as MWF dates (Mon/Wed/Fri)
+- Filename conventions standardized (kebab-case, descriptive)
+- Tag vocabulary consistent across all articles
+- Frontmatter guidance provided for writers (Diane, Cliff)
+
+### Handoff Notes
+- **Diane (Writer)**: Prioritize Weeks 1–4 with visual guides; .agent.md article emphasizes step-by-step customization intro
+- **Cliff (Researcher)**: Gap analysis for Weeks 1–4 due mid-February
+- **Carla (Publishing)**: Use series metadata (series: "Copilot Customization", part: 1); mark Weeks 1 articles as featured: true
+- **Norm & Scribe**: Monitor product releases; pre-stage flex content (Week 11 Wed, May 13)
+
+### Confidence & Success Metrics
+✅ **HIGH CONFIDENCE**
+- Audience arc maintained (Beginner → Intermediate → Advanced progression)
+- All 32 identified gaps + 4 foundational topics covered by end of 12 weeks
+- Series cross-linking enables 20%+ internal click-through SEO strategy
+- Two flex slots provide buffer for emergent content without derailing plan
+
+**Success Criteria**:
+1. Publish 34–36 articles on MWF schedule (allowing flex slots strategic use)
+2. High-priority articles (Weeks 1–4) achieve 2x average engagement
+3. Beginner articles maintain consistent engagement (validates accessibility)
+4. Series articles generate 20%+ internal cross-linking CTR