pakrym-oai
b6d6be2a84
## Why Prototype whether the harness can invoke the `mcp_history` MCP while constructing full initial context and expose its thread hint to the model without requiring a model-issued tool call. The prototype builds on the context-window lineage added by #29256 and is now based directly on `main`. ## What changed - Call `mcp_history/thread_hint` with no arguments while building the full `<token_budget>` context. - Pass the current `threadId` through MCP request metadata, matching the normal MCP tool-call path. - Serialize only the unstructured `content` result and append it inside `<token_budget>` when the call succeeds. - Omit the additional context when the MCP call or content serialization fails. ## Prototype limitations - The direct call bypasses the normal model-initiated MCP approval, lifecycle-event, telemetry, and result-sanitization path. - The call has no prototype-specific timeout, result-size cap, or per-window cache. - MCP latency is added to full-context construction, including applicable compaction paths. ## Validation - `just test -p codex-core token_budget`
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Run the following on Mac or Linux to install Codex CLI:
curl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.