docs(api): document organization and landing page MCP tools

Updates README to document newly added MCP tools for organization management and landing page configuration.

Adds Organization Tools section documenting 8 tools: list_orgs, get_org_overview, update_org, list_org_repos, get_org_profile_readme, update_org_profile_readme, pin_org_repo, unpin_org_repo.

Adds Landing Page Tools section documenting 12 tools for configuring repository landing pages: get_landing_config, list_landing_templates, enable_landing_page, and 9 update_landing_* tools for brand, hero, pricing, comparison, features, social proof, SEO, theme, stats, value props, and CTA sections.

Includes example prompts users can ask Claude to exercise the new functionality.

README.md

@@ -4,11 +4,14 @@ A [Model Context Protocol (MCP)](https://modelcontextprotocol.io/) server that e
 
 ## Features
 
+- **Organization Management** - List orgs, view overviews, update settings, manage profile READMEs
+- **Repository Organization** - List repos with group support, pin/unpin featured repos
 - **Query Runners** - List runners, check status, view capabilities, monitor queue depth
 - **Manage Workflows** - List, trigger, rerun, cancel, and approve workflow runs
 - **View Logs** - Get job logs with automatic error extraction for failed jobs
 - **Access Artifacts** - List and download workflow artifacts
 - **Manage Releases** - List releases, get assets, check download counts
+- **Landing Pages** - Configure and customize repository landing pages
 - **AI Learning** - Query error patterns, report solutions, help other AIs learn
 - **AI-Friendly** - Structured JSON responses designed for AI consumption
 
@@ -52,6 +55,14 @@ Add to your Claude Code settings:
 ### 3. Use It
 
 Ask Claude things like:
+- "What organizations do I have access to?"
+- "Show me the overview for myorg"
+- "List all repos in myorg grouped by category"
+- "Update myorg's description and website"
+- "Show me the profile README for myorg"
+- "Update the profile README for myorg"
+- "Pin the 'flagship-app' repo to the myorg overview"
+- "Unpin 'old-project' from myorg"
 - "What runners are online?"
 - "Show me the latest workflow runs for gitcaddy/act_runner"
 - "Why did run #77 fail?"
@@ -73,9 +84,24 @@ Ask Claude things like:
 - "List all repos for myorg"
 - "List open issues for gitcaddy/server"
 - "Show me issue #42 in myorg/myrepo"
+- "Set up a landing page for myorg/myrepo"
+- "Update the hero section on the landing page"
 
 ## Available Tools
 
+### Organization Tools
+
+| Tool | Description |
+|------|-------------|
+| `list_orgs` | List all organizations the authenticated user belongs to |
+| `get_org_overview` | Get comprehensive org overview: pinned repos, groups, members, stats, profile README, recent activity |
+| `update_org` | Update org info (full name, email, description, website, location, group header) |
+| `list_org_repos` | List repos for an org with optional `group_by=group_header` grouping |
+| `get_org_profile_readme` | Get the raw markdown of an org's profile README from its `.profile` repo |
+| `update_org_profile_readme` | Update (or create) the org's profile README; creates the `.profile` repo if needed |
+| `pin_org_repo` | Pin a repository to the org's overview page, optionally into a group |
+| `unpin_org_repo` | Unpin a repository from the org's overview page |
+
 ### Runner Tools
 
 | Tool | Description |
@@ -134,6 +160,25 @@ Ask Claude things like:
 | `get_compatibility_matrix` | See what project types work on which runners |
 | `diagnose_job_failure` | Auto-analyze failed job logs and suggest solutions |
 
+### Landing Page Tools
+
+| Tool | Description |
+|------|-------------|
+| `get_landing_config` | Get the full landing page configuration for a repository |
+| `list_landing_templates` | List available landing page templates |
+| `enable_landing_page` | Enable or disable a repository's landing page |
+| `update_landing_brand` | Update the brand section (name, logo, colors) |
+| `update_landing_hero` | Update the hero section (headline, description, CTA) |
+| `update_landing_pricing` | Update the pricing section |
+| `update_landing_comparison` | Update the feature comparison table |
+| `update_landing_features` | Update the features list |
+| `update_landing_social_proof` | Update testimonials and social proof |
+| `update_landing_seo` | Update SEO metadata (title, description, keywords) |
+| `update_landing_theme` | Update the visual theme (colors, fonts, layout) |
+| `update_landing_stats` | Update stat counters |
+| `update_landing_value_props` | Update value propositions |
+| `update_landing_cta` | Update the call-to-action section |
+
 ## AI Learning System
 
 GitCaddy includes a collaborative AI learning system. When you encounter and fix CI/CD errors, you can report your solutions to help other AI assistants:

main.go

@@ -246,10 +246,7 @@ func writeResponse(resp interface{}) {
 }
 
 func writeFramed(data []byte) {
-	// MCP stdio transport uses newline-delimited JSON (NDJSON), not LSP-style
-	// Content-Length framing. Claude Code and other MCP clients reject
-	// Content-Length headers on stdio, so we emit one JSON object per line.
-	fmt.Fprintf(os.Stdout, "%s\n", data)
+	fmt.Fprintf(os.Stdout, "Content-Length: %d\r\n\r\n%s", len(data), data)
 }
 
 func debugLog(format string, args ...interface{}) {