topic · 3 notes
Tool Calling, as it ships.
Engineering notes on Tool Calling by Samir Sengupta - each one read from primary sources on the day it happened, with what it changes for people building on it.
August 14, 2026 · LLM Serving · Open Weights · Agent Infrastructure
Qwen3.8-27B-FP8 lands with XML tool calls and xhigh reasoning on by default
Qwen3.8-27B-FP8 published 2026-08-14. FP8 27B implies roughly 27GB of weights; the card's chat template mandates XML tool calls, xhigh reasoning by default, and raises on tool-only turns.
August 13, 2026 · Agent Frameworks · LLM Serving · Tool Calling
DeepSeek's agent harness is public, but the sampling config isn't in the README
DeepSeek open-sourced dsh (MIT, 12,293 commits) on the same day V4 Pro 0813 hit OpenRouter at $0.435/$0.87 per 1M and 1M context. Here is what the release actually specifies.
August 7, 2026 · Agents · Tool Calling · LLM Evaluation
Programmatic tool calling matched or beat JSON on 11 of 14 models
On BFCL v4, programmatic tool calling matched or exceeded native JSON calls in 11 of 14 models, hit +10.6% on GPT-5.6, and stayed flat under context rot where JSON dropped 2.3%.
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