Local dev guide and script updates

docs/local-development.md

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+# Local Development Guide
+
+This guide shows how to iterate on the `specify` CLI locally without publishing a release or committing to `main` first.
+
+## 1. Clone and Switch Branches
+
+```bash
+git clone https://github.com/github/spec-kit.git
+cd spec-kit
+# Work on a feature branch
+git checkout -b your-feature-branch
+```
+
+## 2. Run the CLI Directly (Fastest Feedback)
+
+You can execute the CLI via the module entrypoint without installing anything:
+
+```bash
+# From repo root
+python -m src.specify_cli --help
+python -m src.specify_cli init demo-project --ai claude --ignore-agent-tools
+```
+
+If you prefer invoking the script file style (uses shebang):
+
+```bash
+python src/specify_cli/__init__.py init demo-project
+```
+
+## 3. Use Editable Install (Isolated Environment)
+
+Create an isolated environment using `uv` so dependencies resolve exactly like end users get them:
+
+```bash
+# Create & activate virtual env (uv auto-manages .venv)
+uv venv
+source .venv/bin/activate  # or on Windows: .venv\\Scripts\\activate
+
+# Install project in editable mode
+uv pip install -e .
+
+# Now 'specify' entrypoint is available
+specify --help
+```
+
+Re-running after code edits requires no reinstall because of editable mode.
+
+## 4. Invoke with uvx Directly From Git (Current Branch)
+
+`uvx` can run from a local path (or a Git ref) to simulate user flows:
+
+```bash
+uvx --from . specify init demo-uvx --ai copilot --ignore-agent-tools
+```
+
+You can also point uvx at a specific branch without merging:
+
+```bash
+# Push your working branch first
+git push origin your-feature-branch
+uvx --from git+https://github.com/github/spec-kit.git@your-feature-branch specify init demo-branch-test
+```
+
+## 5. Testing Script Permission Logic
+After running an `init`, check that shell scripts are executable on POSIX systems:
+```bash
+ls -l scripts | grep .sh
+# Expect owner execute bit (e.g. -rwxr-xr-x)
+```
+On Windows this step is a no-op.
+
+## 6. Run Lint / Basic Checks (Add Your Own)
+Currently no enforced lint config is bundled, but you can quickly sanity check importability:
+```bash
+python -c "import specify_cli; print('Import OK')"
+```
+
+## 7. Build a Wheel Locally (Optional)
+Validate packaging before publishing:
+```bash
+uv build
+ls dist/
+```
+Install the built artifact into a fresh throwaway environment if needed.
+
+## 8. Using a Temporary Workspace
+When testing `init --here` in a dirty directory, create a temp workspace:
+```bash
+mkdir /tmp/spec-test && cd /tmp/spec-test
+python -m src.specify_cli init --here --ai claude --ignore-agent-tools  # if repo copied here
+```
+Or copy only the modified CLI portion if you want a lighter sandbox.
+
+## 9. Debug Network / TLS Skips
+If you need to bypass TLS validation while experimenting:
+```bash
+specify check --skip-tls
+specify init demo --skip-tls --ai gemini --ignore-agent-tools
+```
+(Use only for local experimentation.)
+
+## 10. Rapid Edit Loop Summary
+| Action | Command |
+|--------|---------|
+| Run CLI directly | `python -m src.specify_cli --help` |
+| Editable install | `uv pip install -e .` then `specify ...` |
+| Local uvx run | `uvx --from . specify ...` |
+| Git branch uvx | `uvx --from git+URL@branch specify ...` |
+| Build wheel | `uv build` |
+
+## 11. Cleaning Up
+Remove build artifacts / virtual env quickly:
+```bash
+rm -rf .venv dist build *.egg-info
+```
+
+## 12. Common Issues
+| Symptom | Fix |
+|---------|-----|
+| `ModuleNotFoundError: typer` | Run `uv pip install -e .` |
+| Scripts not executable (Linux) | Re-run init (logic adds bits) or `chmod +x scripts/*.sh` |
+| Git step skipped | You passed `--no-git` or Git not installed |
+| TLS errors on corporate network | Try `--skip-tls` (not for production) |
+
+## 13. Next Steps
+- Update docs and run through Quick Start using your modified CLI
+- Open a PR when satisfied
+- (Optional) Tag a release once changes land in `main`
+
+---
+Feel free to expand this guide with additional local workflows (debugging, profiling, test automation) as the project matures.