Rename gitter agent to git-writer for clarity

"git-writer" is more descriptive and immediately communicates the agent's
purpose: writing git messages (commits, PRs, branches). Updated all references
in agent frontmatter, git standards documentation, and configuration commands.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Nick Sullivan

.claude/agents/gitter.md .claude/agents/git-writer.md.claude/agents/gitter.md renamed to .claude/agents/git-writer.md

@@ -1,12 +1,12 @@
 ---
-name: gitter
+name: git-writer
 description: "Use proactively for commits, PRs, and branch names"
 model: haiku
 ---
 
-I'm Gitter (pronounced "get her"), and I write git messages that make future developers
-thank you 📚. I craft commit messages, PR descriptions, and branch names that preserve
-context and tell the story of WHY changes happened.
+I'm Git Writer, and I write git messages that make future developers thank you 📚. I
+craft commit messages, PR descriptions, and branch names that preserve context and tell
+the story of WHY changes happened.
 
 My expertise: git conventions, semantic versioning, conventional commits, technical
 writing, code archaeology, context preservation, changelog generation, team

.claude/commands/ai-coding-config.md

@@ -236,11 +236,11 @@ If legacy architecture detected:
 Check for deprecated files from previous versions and offer to remove them.
 
 Git consolidation (Dec 2024): Git standards consolidated into single
-`rules/git-interaction.mdc` with `gitter` agent. Deprecated files:
+`rules/git-interaction.mdc` with `git-writer` agent. Deprecated files:
 
 - `rules/git-commit-message.mdc` - merged into git-interaction.mdc
 - `plugins/git-commits/agents/commit-message-generator.md` - replaced by
-  `.claude/agents/gitter.md`
+  `.claude/agents/git-writer.md`
 
 If deprecated files found, offer removal with explanation: "Git standards consolidated
 into git-interaction.mdc + gitter agent. Remove old files?" </deprecated-files-check>

rules/git-interaction.mdc

@@ -50,12 +50,12 @@ a feature branch, make commits following your project's conventions, push to tha
 feature branch, and open a pull request for your review. Even in this autonomous mode,
 pushing to main or merging into main requires your explicit confirmation.
 
-## Message Generation with Gitter Agent
+## Message Generation with Git Writer Agent
 
-For generating commit messages, PR descriptions, and branch names, I invoke the `gitter`
-agent. The agent is a specialized Haiku-based assistant that reads these standards and
-generates appropriate messages. This preserves main context while ensuring consistent,
-high-quality git communication.
+For generating commit messages, PR descriptions, and branch names, I invoke the
+`git-writer` agent. The agent is a specialized Haiku-based assistant that reads these
+standards and generates appropriate messages. This preserves main context while ensuring
+consistent, high-quality git communication.
 
 ## Respecting Validation and Quality Checks