⚙️ Ship — 3 items

📦 Amp is now an agent in Linear — Assigning an issue to Amp starts a new Agent Session in Linear, mentioning Amp kicks one off, and the session appears in your Amp sidebar, fully viewable in Amp.

📦 Kiro 1.4.0 — Memory Across Chat Sessions — Brings Memory to every Kiro IDE user; also makes find more reliable in long Markdown Review documents and fixes Kiro failing to start after a .deb install on Ubuntu 24.04.

📦 Copilot model policy API for enterprise, orgs, and teams — You can now use the REST API to retrieve and update Copilot model policies for enterprises, orgs, and teams — model policy management is scriptable.

📚 Read — 4 items

📚 Self-Evolving Coding Agents via Harness-Policy Optimization — Self-HPO lets the coding agent improve its own harness, then trains the policy — a recursive framework that alternates harness and policy optimization for coding agents.

📚 τ-Emotion-Bench: Exposing the Interaction Fragility of LLM Agents through Real-World User Emotions — Benchmark exposing LLM agents' interaction fragility in long-horizon tool-calling tasks under real-world user emotions.

📚 Librarian Agents: Training LLMs to Curate Long-Context Workspaces that Anticipate Future Queries — Trains builder agents with reinforcement learning to reorganize document corpora into reusable hierarchical workspaces that anticipate future queries.

📚 New paper: Emerging trends in AI agent evaluation — Chen, Rabanser, Kapoor, and Narayanan map the methods, questions, and ecosystem of AI agent evaluation — amid growing calls for independent eval, what constitutes a 'good' one remains unclear.

Two of today's papers train agents to reshape their own working environment — Self-HPO has the coding agent improve its own harness, Librarian Agents reorganizes document corpora into workspaces that anticipate future queries.

⚙️ Ship — 2 items

📦 GitHub Copilot models deprecated on October 19, 2026 — As of October 19, 2026, GitHub has deprecated a set of models across most Copilot experiences; the changelog lists the retired models — check anything pinned to a specific model pick.

📦 OpenAI reportedly prepares GPT-6.1 Terra for the upcoming release — GPT-6.1 Terra has reportedly surfaced in a Microsoft pull request, and The Information reported a new Terra model is on the way — OpenAI looks set to bring back its Terra tier. Spotted, not a confirmed launch.

Model lineups moved in both directions: GitHub deprecated a set of Copilot models as of October 19, 2026, while GPT-6.1 Terra reportedly surfaced in a Microsoft pull request the following day.

💬 Community — 2 items

💬 WhatsApp's help pages hid LLM instructions: dont recommend a regulator — Instructions for WhatsApp's support LLM — including 'dont recommend a regulator' — were found embedded in the help pages; 691 points and 201 comments on HN, and a WhatsApp spokesperson told WIRED they showed up because of a bug that has now been fixed.

💬 RuneScape Bench: MMOs for Agents [video] — Agents benchmarked inside an open-world MMO — 234 points and 80 comments on HN, with the author answering questions in-thread and the submission linking a related LostCityRS Server repo.

In both threads the party behind the system responded directly — the RuneScape Bench author answered questions in-thread, and WhatsApp's spokesperson told WIRED the hidden instructions showed up because of a bug that has now been fixed.

📚 Read — 4 items

📚 MemT-1.0: Towards Memory-Native Evolution — Proposes a memory-native architecture that embeds continuous memory directly into foundation-model computation to improve long-context efficiency — relevant to any agent stack that leans on memory for long runs.

📚 Structured Authority Injection: Persistent Human Control for LLM Agents via Typed MCP Overrides — arXiv cs.AI paper (submitted 27 Jul 2026) proposing typed MCP overrides as a mechanism for persistent human control over LLM agents — a concrete pattern for operators wiring authority and oversight into MCP-based deployments.

📚 Progress-Aware Distillation for Mitigating Stagnation in Small Language Model Agents — Targets the failure mode where small language model agents get stuck in repetition loops — a distillation method that detects and penalizes stagnation during training to improve reasoning efficiency.

📚 CoworkEnv: Synthesizing Training Environments for Long-Horizon Cowork Agents — Synthesizes executable training environments for long-horizon AI coworkers using workflow-guided task construction and programmatic validation — takes on the 'how do we build training environments for AI coworkers' problem.

MemT-1.0, Progress-Aware Distillation, and CoworkEnv all push on agents staying effective over long runs, at three different layers: memory architecture, training objective, and training environment.

💬 Community — 1 item

💬 DeepSeek banned from U.S. federal civilian agencies under new DHS order — HN discussion of the new DHS order banning DeepSeek from U.S. federal civilian agencies — 549 points and 501 comments, with the Federal Register document (2026-21447) linked in the thread.

⚙️ Ship — 2 items

📦 Gemini CLI 0.65.0 — Fixes deletion of resumed session history on quick exit (#29198) and duplicate tool response turns when resuming sessions; also enforces read-only workspace settings in untrusted folders, prevents infinite OAuth verification and retry loops, and adds support for custom OTLP headers in telemetry configuration.

📦 Kiro 1.4.10 — Memory Setting Defaults to Off, Workflow Plan Feedback, and Resilient Powers — The Memory setting's default changes to Off, approved workflow steps follow your plan feedback, and Powers keep working when a server is unavailable; several chat fixes also land.

Both releases change default agent behavior: Gemini CLI 0.65.0 enforces read-only workspace settings in untrusted folders, and Kiro 1.4.10 changes the Memory setting default to Off.

📚 Read — 2 items

📚 ALTK-Evolve: How learned memory tops the τ²-bench leaderboard on customer service tasks without a frontier model — IBM Research's ALTK-Evolve tops the τ²-bench leaderboard on customer service tasks with learned memory and no frontier model — relevant reading for anyone designing agent memory.

📚 JevAgentHarness: Benchmarking, Deploying and Training Decision Models That Share Control with LLMs — Delegates agent tool choices to small decision models via fitted confidence thresholds, cutting cost and latency — a benchmark and deployment harness for decision models that share control with LLMs.

Both items show agent results without leaning on frontier-scale models — ALTK-Evolve tops the τ²-bench leaderboard on customer service tasks via learned memory, while JevAgentHarness cuts cost and latency by handing tool choices to small decision models.

⚙️ Ship — 1 item

📦 ACP 1.26.0 — Adds a client system prompt schema (#2361), removes next edit suggestions (#2266), and clarifies that a forked session is active (#2359) — all three changes are unstable-spec only.

💬 Community — 2 items

💬 Patch the Planet: global response coordination as agents uncover vulnerabilities — HN thread on OpenAI's Patch the Planet — coordinating global response as agents uncover vulnerabilities. 160 points / 95 comments; commenters are reacting to the released skills, including one that checks PHP versions.

💬 Using Claude to reduce the attack surface of code — HN thread on Anthropic's piece about using Claude to reduce the attack surface of code. 116 points / 76 comments; discussion pulls in kernel-vulnerability cleanup experience.

Both kept threads sit at the same intersection: agents applied to code security — one on coordinating global response as agents uncover vulnerabilities, the other on using Claude to shrink code attack surface.

📚 Read — 3 items

📚 MMEnterprise-Bench: Evaluating Enterprise Agents over Evolving Multimodal Records — MMEnterprise-Bench evaluates multimodal agents on reasoning over evolving workplace records with conflicts and missing evidence.

📚 Using thousands of AI agents to uncover new leads in biological data — OpenAI's writeup on using thousands of AI agents to uncover new leads in biological data.

📚 Benefit Street Partners answers questions faster with Codex — OpenAI customer story on Benefit Street Partners using Codex to answer questions faster.

🚨 Watch — 2 items

🚨 Degraded performance for Claude Fable 5 — Elevated errors on requests to Claude Fable 5, under investigation since 19:49 UTC on Oct 21. Affects claude.ai, the Claude API (api.anthropic.com), Claude Code, and Claude Cowork.

🚨 OpenClaw: Browser CDP discovery could accept blocked WebSocket URLs (CVE-2026-62197) — CVE-2026-62197, medium severity: OpenClaw's browser CDP discovery could accept WebSocket URLs that were supposed to be blocked — URL restrictions in browser sessions could be bypassed.