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Tools & Coding

864 summarised stories in Tools & Coding, each linking back to the original source. Browse all topics →

Wednesday, 4 February 2026

Unlocking the Codex harness: how we built the App Server

OpenAI Blog 6 months ago 26 2 sources

Codex released an App Server that uses a bidirectional JSON-RPC API to embed the Codex agent into applications. The API supports streaming progress updates, tool execution, approval workflows, and diff visualization. Developers can now integrate Codex agents directly into their own applications with standardized communication protocols.

Community Evals: Because we're done trusting black-box leaderboards over the community

Hugging Face Blog 6 months ago 16

Hugging Face launched a decentralized evaluation system where benchmark datasets can host leaderboards and any community member can submit model evaluation results via pull requests. The initial rollout includes four benchmarks—MMLU-Pro, GPQA, and HLE among them—with results stored as YAML files in model repositories and aggregated automatically across the Hub. This creates a transparent record of evaluation sources and methodology, allowing the community to track and build upon scores rather than relying on conflicting reports from papers and closed platforms.

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