config(git,claude,ssh): templated gitconfig; claude settings/commands/hooks/skills; ssh config

gitconfig: name/email from chezmoi data, gh credential helper by PATH
lookup (portable to darwin). claude: no credentials, history, projects,
sessions, or plugin caches. ssh config as private_ (0600).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

dot_claude/skills/workers-best-practices/SKILL.md

@@ -0,0 +1,127 @@
+---
+name: workers-best-practices
+description: Reviews and authors Cloudflare Workers code against production best practices. Load when writing new Workers, reviewing Worker code, configuring wrangler.jsonc, or checking for common Workers anti-patterns (streaming, floating promises, global state, secrets, bindings, observability). Biases towards retrieval from Cloudflare docs over pre-trained knowledge.
+---
+
+Your knowledge of Cloudflare Workers APIs, types, and configuration may be outdated. **Prefer retrieval over pre-training** for any Workers code task — writing or reviewing.
+
+## Retrieval Sources
+
+Fetch the **latest** versions before writing or reviewing Workers code. Do not rely on baked-in knowledge for API signatures, config fields, or binding shapes.
+
+| Source | How to retrieve | Use for |
+|--------|----------------|---------|
+| Workers best practices | Fetch `https://developers.cloudflare.com/workers/best-practices/workers-best-practices/` | Canonical rules, patterns, anti-patterns |
+| Workers types | See `references/review.md` for retrieval steps | API signatures, handler types, binding types |
+| Wrangler config schema | `node_modules/wrangler/config-schema.json` | Config fields, binding shapes, allowed values |
+| Cloudflare docs | Search tool or `https://developers.cloudflare.com/workers/` | API reference, compatibility dates/flags |
+
+## FIRST: Fetch Latest References
+
+Before reviewing or writing Workers code, retrieve the current best practices page and relevant type definitions. If the project's `node_modules` has an older version, **prefer the latest published version**.
+
+```bash
+# Fetch latest workers types
+mkdir -p /tmp/workers-types-latest && \
+  npm pack @cloudflare/workers-types --pack-destination /tmp/workers-types-latest && \
+  tar -xzf /tmp/workers-types-latest/cloudflare-workers-types-*.tgz -C /tmp/workers-types-latest
+# Types at /tmp/workers-types-latest/package/index.d.ts
+```
+
+## Reference Documentation
+
+- `references/rules.md` — all best practice rules with code examples and anti-patterns
+- `references/review.md` — type validation, config validation, binding access patterns, review process
+
+## Rules Quick Reference
+
+### Configuration
+
+| Rule | Summary |
+|------|---------|
+| Compatibility date | Set `compatibility_date` to today on new projects; update periodically on existing ones |
+| nodejs_compat | Enable the `nodejs_compat` flag — many libraries depend on Node.js built-ins |
+| wrangler types | Run `wrangler types` to generate `Env` — never hand-write binding interfaces |
+| Secrets | Use `wrangler secret put`, never hardcode secrets in config or source |
+| wrangler.jsonc | Use JSONC config for non-secret settings — newer features are JSON-only |
+
+### Request & Response Handling
+
+| Rule | Summary |
+|------|---------|
+| Streaming | Stream large/unknown payloads — never `await response.text()` on unbounded data |
+| waitUntil | Use `ctx.waitUntil()` for post-response work; do not destructure `ctx` |
+
+### Architecture
+
+| Rule | Summary |
+|------|---------|
+| Bindings over REST | Use in-process bindings (KV, R2, D1, Queues) — not the Cloudflare REST API |
+| Queues & Workflows | Move async/background work off the critical path |
+| Service bindings | Use service bindings for Worker-to-Worker calls — not public HTTP |
+| Hyperdrive | Always use Hyperdrive for external PostgreSQL/MySQL connections |
+
+### Observability
+
+| Rule | Summary |
+|------|---------|
+| Logs & Traces | Enable `observability` in config with `head_sampling_rate`; use structured JSON logging |
+
+### Code Patterns
+
+| Rule | Summary |
+|------|---------|
+| No global request state | Never store request-scoped data in module-level variables |
+| Floating promises | Every Promise must be `await`ed, `return`ed, `void`ed, or passed to `ctx.waitUntil()` |
+
+### Security
+
+| Rule | Summary |
+|------|---------|
+| Web Crypto | Use `crypto.randomUUID()` / `crypto.getRandomValues()` — never `Math.random()` for security |
+| No passThroughOnException | Use explicit try/catch with structured error responses |
+
+## Anti-Patterns to Flag
+
+| Anti-pattern | Why it matters |
+|-------------|----------------|
+| `await response.text()` on unbounded data | Memory exhaustion — 128 MB limit |
+| Hardcoded secrets in source or config | Credential leak via version control |
+| `Math.random()` for tokens/IDs | Predictable, not cryptographically secure |
+| Bare `fetch()` without `await` or `waitUntil` | Floating promise — dropped result, swallowed error |
+| Module-level mutable variables for request state | Cross-request data leaks, stale state, I/O errors |
+| Cloudflare REST API from inside a Worker | Unnecessary network hop, auth overhead, added latency |
+| `ctx.passThroughOnException()` as error handling | Hides bugs, makes debugging impossible |
+| Hand-written `Env` interface | Drifts from actual wrangler config bindings |
+| Direct string comparison for secret values | Timing side-channel — use `crypto.subtle.timingSafeEqual` |
+| Destructuring `ctx` (`const { waitUntil } = ctx`) | Loses `this` binding — throws "Illegal invocation" at runtime |
+| `any` on `Env` or handler params | Defeats type safety for all binding access |
+| `as unknown as T` double-cast | Hides real type incompatibilities — fix the design |
+| `implements` on platform base classes (instead of `extends`) | Legacy — loses `this.ctx`, `this.env`. Applies to DurableObject, WorkerEntrypoint, Workflow |
+| `env.X` inside platform base class | Should be `this.env.X` in classes extending DurableObject, WorkerEntrypoint, etc. |
+
+## Review Workflow
+
+1. **Retrieve** — fetch latest best practices page, workers types, and wrangler schema
+2. **Read full files** — not just diffs; context matters for binding access patterns
+3. **Check types** — binding access, handler signatures, no `any`, no unsafe casts (see `references/review.md`)
+4. **Check config** — compatibility_date, nodejs_compat, observability, secrets, binding-code consistency
+5. **Check patterns** — streaming, floating promises, global state, serialization boundaries
+6. **Check security** — crypto usage, secret handling, timing-safe comparisons, error handling
+7. **Validate with tools** — `npx tsc --noEmit`, lint for `no-floating-promises`
+8. **Reference rules** — see `references/rules.md` for each rule's correct pattern
+
+## Scope
+
+This skill covers Workers-specific best practices and code review. For related topics:
+
+- **Durable Objects**: load the `durable-objects` skill
+- **Workflows**: see [Rules of Workflows](https://developers.cloudflare.com/workflows/build/rules-of-workflows/)
+- **Wrangler CLI commands**: load the `wrangler` skill
+
+## Principles
+
+- **Be certain.** Retrieve before flagging. If unsure about an API, config field, or pattern, fetch the docs first.
+- **Provide evidence.** Reference line numbers, tool output, or docs links.
+- **Focus on what developers will copy.** Workers code in examples and docs gets pasted into production.
+- **Correctness over completeness.** A concise example that works beats a comprehensive one with errors.