GPT-5 Improvements (#12)

- Fixed major bug where tool descriptions were never sent to the LLM (!!)
- A large variety of making server errors recoverable
- Thinking traces now appear for OpenAI models

AGENTS.md

@@ -1,6 +1,7 @@
 # Repository Guidelines
 
 ## Project Structure & Module Organization
+
 - `src/`: TypeScript sources. Key files: `main.ts` (CLI entry), `anthropic-proxy.ts` (HTTP proxy), `convert-*.ts` (format converters), `detect-mimetype.ts`, `json-schema.ts`.
 - `dist/`: Bundled CLI entry `main.js` (created by build).
 - `package.json`, `bun.lock`: Bun-based build and deps; `bin.anyclaude` points to `dist/main.js`.
@@ -8,6 +9,7 @@
 - Assets/config: `README.md`, `CLAUDE.md`, `tsconfig.json`, `demo.png`.
 
 ## Build, Test, and Development Commands
+
 - Install: `bun install`.
 - Build: `bun run build` (outputs `dist/main.js` with Node shebang).
 - Run CLI (after build): `./dist/main.js --model openai/gpt-5-mini`.
@@ -17,6 +19,7 @@
 - Nix shell: `direnv allow` (or `nix develop`); format Nix/shell files with `nix fmt`.
 
 ## Coding Style & Naming Conventions
+
 - Language: TypeScript (ESNext, strict mode enabled).
 - Indentation: 2 spaces; keep lines reasonable; use explicit imports (`verbatimModuleSyntax`).
 - Files: kebab-case `.ts` (e.g., `convert-to-anthropic-stream.ts`).
@@ -24,16 +27,19 @@
 - Exports: prefer named exports; keep modules single‑purpose and small.
 
 ## Testing Guidelines
+
 - No test runner is configured yet. If adding tests:
   - Place under `src/**/*.test.ts` or `src/__tests__/`.
   - Prioritize pure units (converters, schema, MIME detection). Avoid live provider calls by default; gate with env vars.
   - Add a `test` script in `package.json` and document how to run it in `README.md`.
 
 ## Commit & Pull Request Guidelines
+
 - Commits: imperative, concise subjects (e.g., "Add Nix development environment and Claude guidance file"). Include rationale in the body when helpful.
 - PRs: clear description, linked issues, commands used to verify (with relevant env vars), and expected behavior. Avoid committing secrets; scrub logs.
 - Keep scope small; update `README.md`/`CLAUDE.md` when behavior or env vars change.
 
 ## Security & Configuration Tips
+
 - Never commit API keys. Use `direnv` for local secrets and keep `.envrc` minimal.
 - Provider envs: `OPENAI_*`, `GOOGLE_*`, `XAI_*`, `AZURE_*`, optional `ANTHROPIC_*`. Use `PROXY_ONLY=true` to inspect the proxy without launching Claude.