opencode stuff

profiles/opencode/skill/vcs-detect/SKILL.md

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+---
+name: vcs-detect
+description: Detect whether the current project uses jj (Jujutsu) or git for version control. Run this BEFORE any VCS command to use the correct tool.
+---
+
+# VCS Detection Skill
+
+Detect the version control system in use before running any VCS commands.
+
+## Why This Matters
+
+- jj (Jujutsu) and git have different CLIs and workflows
+- Running `git` commands in a jj repo (or vice versa) causes errors
+- Some repos use jj with git colocated (both `.jj/` and `.git/` exist)
+
+## Detection Logic
+
+Both `jj root` and `git rev-parse --show-toplevel` walk up the filesystem to find repo root.
+
+**Priority order:**
+
+1. `jj root` succeeds → jj (handles colocated too)
+2. `git rev-parse` succeeds → git
+3. Both fail → no VCS
+
+## Detection Command
+
+```bash
+if jj root &>/dev/null; then echo "jj"
+elif git rev-parse --show-toplevel &>/dev/null; then echo "git"
+else echo "none"
+fi
+```
+
+## Command Mappings
+
+| Operation | git | jj |
+|-----------|-----|-----|
+| Status | `git status` | `jj status` |
+| Log | `git log` | `jj log` |
+| Diff | `git diff` | `jj diff` |
+| Commit | `git commit` | `jj commit` / `jj describe` |
+| Branch list | `git branch` | `jj branch list` |
+| New branch | `git checkout -b <name>` | `jj branch create <name>` |
+| Push | `git push` | `jj git push` |
+| Pull/Fetch | `git pull` / `git fetch` | `jj git fetch` |
+| Rebase | `git rebase` | `jj rebase` |
+
+## Usage
+
+Before any VCS operation:
+
+1. Run detection command
+2. Use appropriate CLI based on result
+3. If `none`, warn user directory is not version controlled
+
+## Example Integration
+
+```
+User: Show me the git log
+Agent: [Runs detection] -> Result: jj
+Agent: [Runs `jj log` instead of `git log`]
+```
+
+## Colocated Repos
+
+When both `.jj/` and `.git/` exist, the repo is "colocated":
+- jj manages the working copy
+- git is available for compatibility (GitHub, etc.)
+- **Always prefer jj commands** in colocated repos