Speculative Programmatic Tool Calling: 2x Speedup for Agentic Code Execution
CShorten30 · x · 2026-08-28
The Weaviate Podcast featured Alex Zhang's concept of "Speculative Programmatic Tool Calling."
Core Concept:
Instead of waiting for an agent to finish writing code before execution, this method uses a "shadow REPL" to identify safe sub-agent calls while the main model is still generating. These calls begin early, and the real REPL reuses their cached outputs.
Performance:
- This approach achieved roughly 2× speedups in local RLM experiments.
More from coding & agent
- Agent Benchmark Includes Real-World Noise: 300 Phishing Emails and 10 Error Classes — testingcatalog · 2026-08-29
- Accio Open-Sources CommerceAgentBench with 107 Tasks; Top Score Sits at 61.7% — testingcatalog · 2026-08-29
- Harness Swing Hits 11%: Scaffolding Matters as Much as the Model in Long-Horizon Tasks — testingcatalog · 2026-08-29
- A burrito-wholesale chef self-onboards onto an agent bot: "OpenClaw is Android, @bot is Mac" — altryne · 2026-08-29
- Decagon Integrates Perplexity Search for Real-Time Web Access in Agents — denisyarats · 2026-08-29
- Developer creates message board coordinating 100s of agents, considering open source — BLUECOW009 · 2026-08-29