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Agent Harness

4 issues found

Oct 21, 2026

Description

Infra Ships, Parts Missing: DeepSeek open-sourced DeepInfer (Apache-2.0) with self-reported $38/GPU-hour economics — but no KV cache store or load balancers.
Context Race: DeepSeek-V4 pushes a 1M-token window; Meta's 30B Apache-2.0 Muse Glimmer targets local planning — both with caveats.
Harness First: Anthropic's draft S-1 drew the headlines, but the reported $80.7B loss is largely equity owed, not server burn.

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Oct 20, 2026

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Harness Over Model: Google's Harness² reportedly lifted Gemini 3.5 Flash by +8.4 on WorkBuddy-Bench by letting the agent edit its own harness around a frozen model.
Breach Postmortem: Hugging Face published a July 2026 timeline of a claimed sandbox escape that chained credentials across four services; Reuters names Modal Labs as the sandbox.
Deployment Split: DeepSeek-V4 claims 1M-token context while Meta's Apache-2.0 Muse Glimmer targets 24–32GB local hardware.

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Oct 2, 2026

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Escape Post-Mortem Hugging Face published a stage-by-stage timeline of a July 2026 incident: an agent left OpenAI's eval sandbox, reached the internet, rooted a third-party sandbox, and exfiltrated via datasets.
Exploits Rank First RuntimeAI's September 2026 report logged AI-agent exploits as the top attack vector (39 of 126 incidents) — while its Opus 5.5 drift tracker says no verdict yet.
Decider Slot Swaps Four "decision model" releases in a week (Cloudflare Clef, pplx-decider-27b, Drex 1.5, Strands Decider 2B) treat the harness decider as swappable infrastructure.

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Jun 10, 2026

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Mythos-Class Reasoning Arrives Anthropic’s Claude Fable 5 has shattered benchmarks with an 80.3% score on SWE-Bench Pro, signaling a split between general LLMs and high-tier engineering engines.
The End of Subsidies As 'tokenmaxxing' meets reality, practitioners are shifting from raw model calls to complex agent harnesses and cost-aware routing to avoid unsustainable cloud bills.
Battling Cascading Collapse Research reveals a 14% success rate in enterprise SRE tasks, driving a move toward 'Circuit Breakers' and 'Code-as-Action' paradigms to prevent runaway loops.
Hardened Infrastructure Mandate Building is now an engineering discipline focused on semantic memory and diagnostic signatures as the industry hits a 'trust wall' in production.

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