Framework
Anthropic's software development kit for building AI agents powered by Claude, offering tools, APIs, and a CLI for agentic applications.
A dev.to author running Microsoft's agent-hooks conformance kit got 69 passes, 4 skips and 0 failures on its reference harness. That covers one host, while the launch demo names eight frameworks and the claims table has three rows.
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Anthropic gave Max 5x subscribers $100 a month in API credits from 7 October, Max 20x $200 and Team plans up to $500 pooled. The credit excludes interactive Claude Code and expires each cycle, so the model a team runs sets what it buys.
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Anthropic now includes monthly Claude API credits in Max and Team plans, with Team seats pooled into one balance capped at $500. Whichever Console organization an owner links decides whether that money pays for new internal agents or offsets an API bill the company already pays.
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Anthropic's docs say Claude Code checkpoints track only its Write, Edit and NotebookEdit tools, so /rewind cannot restore what bash or a subagent changed. Recovering from an agent's rm or sed -i means git or a snapshot taken before the command ran.
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Arcjet's new runtime security takes agent activity in through the OpenTelemetry pipelines platform teams already run, then evaluates each tool call against Open Policy Agent rules before it executes and again after.
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A Hook fires on a lifecycle event whether the model agrees or not, while a Skill is pulled in by a per-turn judgement on its description. The exit code that enforces a Hook can also deadlock it.
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Salesforce put Data 360, Informatica, MuleSoft, Tableau, Agentforce and Guardian under one new control plane on Thursday. The loops that run agents inside its own tools still belong to Mastra and the Claude Agent SDK.
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A planning step asked for entities and got a bare array that JSON.parse waved straight through. The repair needed both a schema in the prompt and a wrapper in the parser, because two of the three backends behind the interface can only ask.
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Prompting an LLM to self-audit works some fraction of the time, so one developer moved the check into a Stop hook that parses the session transcript and refuses the end of a turn when the audit keywords are missing.
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An adversarial self-audit check that blocks with exit 2 is a useful nag in a terminal. Under launchd it becomes a failed job. The fix here keys off session provenance rather than softening the rule.
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Anthropic's harness for agents that work across days is mostly ordinary repository hygiene, which is also the best reason to think it will still be worth something after the next model release.
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Any harness that refreshes the date in its system prompt or slips a status line into the transcript between turns now gets a 400 instead of a completion, which makes append-only history the fix rather than a retry loop.
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Bedrock AgentCore Evaluations promises to score agents built on LangGraph, LlamaIndex, OpenAI's SDK, Google ADK or the Claude Agent SDK. The catch sits in the instrumentation.
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Gemini Enterprise for Legal ships as skills, connectors, partner agents and a control plane. One of the systems it plugs into belongs to Thomson Reuters.
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The $450,000 training run everyone is quoting is about one percent of the programme behind it. The in-house model took one CoCounsel feature; the agent layer under it stays licensed.
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