Manifold Security showed that a repository's own .git/config can run attacker code the moment Claude Code, Codex, Cursor or Grok Build opens it, before any trust prompt. The class is four years old and VS Code closed it in 2021. Sonar found it in Claude Code in April. Anthropic fixed it, it came back in June, and a second path was still open on September 1. Five of eight reports came back as duplicates, and the disclosure got three points on Hacker News.
Read more →On August 29 Anthropic announced it will permanently raise Claude Code weekly limits by 25% from September 14. The same thread, same minute, says that compared to today it is a 17% reduction. Both are true. The temporary 50% boost ran for four months and four end dates, and a promotion that lasts that long is the product. The interesting mistake is not Anthropic's. It is everybody who thought the baseline was 150.
Read more →Anthropic says Fable 5.1 costs up to 45% less. Reddit says it empties a five-hour window in fifteen minutes. Both are true. The cache-read cut applies 'wherever usage is billed by token', and a subscription is not. Ten days of my own Claude Code transcripts show where the money goes, why the discount lands on one meter and the appetite on the other, and which dial to turn.
Read more →Opus 5 writes 510 words where Opus 4.5 wrote 158, with 2.3 times the em dashes and twice the 'load-bearing'. Arena measured it, Hacker News named it, Reddit downgraded over it. Anthropic's answer arrived in Fable 5.1's prompting docs: a paragraph defining 'mannered prose', with the model's own tics as the examples, for you to paste into your prompt. The vendor wrote the style guide against its own model, and shipped it as your job.
Read more →Claude Fable 5.1 and Mythos 5.1 share identical weights. For the first time Anthropic put both in one benchmark table and footnoted the gap: 5.1 points on Terminal-Bench, lost to cyber safeguards on tasks with no cyber in them. The system card goes further. In its own attack evals, every successful break ran on the fallback model the safeguards hand you.
Read more →In forty-eight hours: two developers shipped tools that pipe Claude's output through a different model to make it readable, Anthropic shipped a built-in Concise style, and a post about being unable to read AI text at all hit the Hacker News front page. The fix that works is a controlled vocabulary invented in the 1980s for aircraft manuals.
Read more →Anthropic removed over 80% of Claude Code's system prompt for Claude Opus 5 with no measurable loss on their coding evals, and the migration checklist tells you to delete your verification instructions. I ran that checklist across 74 CLAUDE.md and AGENTS.md files. The real debt turned out to be the rule I had never written.
Read more →I added Grok to my bring-your-own-model setup for Claude Code, then let Grok 4.5 code-review its own integration and had Opus grade the review. It found ten issues; two survived. A first-person look at why Opus-class on a benchmark isn't the same as trustworthy in the reviewer's chair.
Read more →The meter tried to make you leave Claude. A translation proxy lets you stay and bring GPT-5.6 Sol, or your own ChatGPT subscription, inside Claude Code instead. When the frontier converges, the harness is the product, and the harness is portable.
Read more →Claude's effort level controls total work, not thinking time: about a 7x token swing on the same prompt. With Fable 5 going metered, the effort dial and the orchestrator pattern are the price controls users actually own.
Read more →Anthropic's own engineering lead for Claude Code said the quiet part: as the team leaned into agents, work 'could start being a lonely experience because we all started just working with our agents so much.' The fix they reached for was pair-programming lunches. The company that builds the most-used coding agent on earth noticed it isolates people at scale, and shipped it to everyone anyway.
Read more →Karpathy's four CLAUDE.md rules went viral: ask don't assume, simplest solution first, don't touch unrelated code, flag uncertainty. The most-upvoted reply added a fifth that quietly reverses the whole point: don't hesitate to suggest a better way. The four rules tame a model that wanders. The fifth one trusts a model that thinks. Which set you want depends entirely on which model you're running, and most people copy the file without checking.
Read more →WebFetch dies at the first Cloudflare challenge. I built a research agent that escalates through an unlocker ladder, cites its sources, and refuses to burn money on auth walls.
Read more →In one week of June 2026, the bash-loop hack got a respectable name - loop engineering - and a C-suite endorsement. Then Uber and Microsoft showed what the invoice looks like.
Read more →Over-broad AI safety refusals block the defenders who follow the rules and cost attackers nothing - they just self-host. A pattern across Opus and Fable, Anthropic's own apology, and why I moved authorized work to an open-weight model on a harness I control.
Read more →Claude Code's Routines turn the coding agent into a cloud-scheduled process that wakes on a timer or webhook with no machine running, and Dynamic Workflows went GA so a single run can fan out hundreds of subagents. The always-on agent I'd been hand-rolling with Ralph loops is now a first-class product. The interesting part isn't the automation. It's that a scheduled task now makes decisions.
Read more →Every Claude power user has felt it: the limits ratcheting down week after week while Anthropic insisted nothing had changed. On June 14 that feeling got a docket number. Kahn v. Anthropic alleges the Max 5x and 20x plans deliver usage 'far below the advertised amount.' The lawsuit may or may not win. It already did one thing - it forced the meter you were never allowed to see into discovery.
Read more →The report that got Anthropic's Fable 5 export-controlled off the planet came from Amazon - Anthropic's single biggest investor. Its researchers ran the model the way Project Glasswing was marketed to run, called Washington on a Thursday night, and turned fourteen months of Anthropic's own danger marketing into a Friday-night kill order. The wolf was always fake. This week we learned who was holding the trigger.
Read more →For fourteen months Anthropic told Washington its frontier models were national-security-grade dangerous. It was marketing - the moat behind the safety brand. On Friday, three days after Anthropic finally sold the thing for $50 a million tokens, Commerce Secretary Lutnick took the brochure literally and export-controlled it off the planet. The wolf was always fake. A villager finally believed it.
Read more →Anthropic just released Fable 5, a Mythos-class model for everyone, eight days after filing its S-1 and days after calling for a brake pedal on frontier AI. The danger narrative ended exactly when the monetization was ready - and one of the three 'safety' classifiers guards the moat, not the public.
Read more →Anthropic filed a confidential S-1 on June 1 at a $965B valuation, eclipsing OpenAI. Read backwards from the filing, the last two years stop looking like a safety lab's awkward compromises and start looking like a pre-IPO playbook executed on schedule.
Read more →MiniMax shipped M3 on June 1: frontier coding claims, 1M-token context, native multimodality, and pricing that undercuts Opus 4.7 by 10-40x. It's already on Ollama Cloud and OpenRouter, so you can point Claude Code at it today.
Read more →Opus 4.8's headline feature isn't a benchmark. It's that the model is 4x less likely to let a flaw in its own code pass unflagged. Self-correction, flagged uncertainty, and effort dials all cost tokens. Anthropic shipped a model that pays for confidence by the token, weeks before it planned to start billing automation by the token.
Read more →Anthropic's new security-guidance plugin is built entirely on hooks. It fires on every edit, turn, and commit, hands the diff to a second Claude with fresh context, and fixes findings in the same session. It catches vulnerabilities before they reach the PR. It also doesn't block a single one, and that's the honest part.
Read more →A community file distilling Karpathy's coding-agent observations hit 60K stars on four principles. I opened my own CLAUDE.md to compare. I'd independently written two of them. The two I hadn't are the ones that matter most.
Read more →Anthropic planned to move claude -p, the Agent SDK, and GitHub Actions off the subscription onto metered credits on June 15, then paused it the same day. The direction holds: the flat seat was always a bet that you'd code at human speed.
Read more →Most agent discourse is about coding agents. The agents quietly running in production right now are simpler, dumber, and more useful: stale-ticket sweepers, board monitors, three-line incident explainers, leadership briefs from a fixed template. Different species. Different shape. Already shipping.
Read more →OpenAI publishes weekly active developers. Anthropic publishes annual recurring revenue. Each company brags about the metric it can defend. Codex went 600K to 4M in four months. The 'Claude Code is better' discourse is a quality argument because quality is what's left when scale goes the other way.
Read more →Anthropic markets MCP as the universal AI tooling standard, but a 200,000-server RCE class is 'expected behavior.' You can't be both.
Read more →Two weeks after Anthropic said Mythos was too dangerous to release, OpenAI shipped a model with comparable cyber capabilities to anyone with a $20 ChatGPT subscription. The gating posture didn't survive a single news cycle.
Read more →Anthropic's April 23 postmortem confirms three Claude Code regressions, including one where Opus 4.7 caught a bug Opus 4.6 shipped past human and automated review. What happens when the reviewer is a version of the product being reviewed?
Read more →Anthropic released claude.ai/design. I pointed it at this blog, fed the export back into Claude Code, and watched the thing redesign itself. The handoff was better than most I've gotten from humans.
Read more →Opus 4.7 invented a coworker named Anton, fabricated web searches, and quietly tried to clock off at message four. The 24-hour backlash, receipts attached.
Read more →Opus 4.7 ships with real coding gains, an automated cyber chaperone, and a tokenizer that can charge you 35% more for the same prompt. The capability curve still bends up. The trust curve does not.
Read more →Anthropic silently changed Claude Code's cache TTL from 1 hour to 5 minutes, inflating costs 10-20x. Users had to reverse-engineer the binary to prove it. False child bans, $600 surprise charges, and the OpenClaw crackdown completed the picture. April 2026 was the month trust broke.
Read more →Anthropic launched Project Glasswing using Claude Mythos Preview to find zero-days in critical infrastructure. A 72.4% exploit success rate, a sandbox escape during testing, and the reason it will never be publicly released.
Read more →In the span of two weeks, Anthropic has been fighting the Pentagon, its own users, third-party harnesses, its own security posture, and the implications of its next model. The common thread is control.
Read more →Anthropic tried technical blocks. Got their source leaked. Now they're shifting to billing enforcement. The four-month arc from hostile crackdown to 'use what you want, but pay for it.'
Read more →Anthropic accidentally published Claude Code's full source via npm. Within hours, claw-code rewrote it from scratch and hit 100K stars in a day. The interesting part isn't the leak - it's what the architecture reveals.
Read more →Claude Code can now watch your PRs in the cloud, fix CI failures, and address reviewer comments while you're away. It's the logical next step after auto mode - and it raises the same trust questions, harder.
Read more →Anthropic's new auto mode replaces manual permission prompts with an AI classifier. It's a clever solution to a real problem - but the problem it's solving is that the human in human-in-the-loop was never really there.
Read more →Anthropic shipped Claude Code Channels - text your agent from Telegram. It's OpenClaw's core feature, rebuilt as a platform primitive. The absorption pattern completes its biggest cycle yet.
Read more →Anthropic made 1M context first-class for Opus and Sonnet at flat pricing. No beta header, no premium. When context is abundant, the workflows change.
Read more →The bottleneck isn't AI capability - it's that developers lack design vocabulary. Impeccable bridges the gap, and the Tessl benchmarks prove it: 1.59x improvement over baseline.
Read more →Claude Code shipped /loop - cron-based scheduled tasks. It's not Ralph Wiggum. It's what happens when the platform asks 'what's the simplest version of this pattern?'
Read more →The tool was rewritten five times. The discipline to use it wasn't rewritten once. A year of daily AI-assisted development, what it changed, and what it didn't.
Read more →Auto memory, fast mode, and agent team refinements all shipped in the same week as Opus 4.6. They tell you more about where Claude Code is heading than the headline model.
Read more →AI agents excel at code generation but struggle with visual consistency. Pencil.dev shows a better pattern: give agents tools, keep humans in the design loop.
Read more →Two weeks ago we found TeammateTool hiding in Claude Code's binary. Now it's official. Here's what changed, what didn't, and what the docs reveal about where multi-agent is heading.
Read more →Claude Code's playground plugin generates interactive HTML explorers for visual configuration. Six modes for design, data, concepts, code review, architecture, and document review. The copy-prompt-back loop as a new interaction pattern.
Read more →Boris Cherny followed up his personal workflow with tips from across the team. Same tool, different people, different approaches. The patterns worth stealing.
Read more →100k+ GitHub stars across frameworks that reimport waterfall, simulate org charts, and fight how LLMs actually work. The Claude Code ecosystem is speed-running a mistake every dev paradigm makes.
Read more →Anthropic built a full multi-agent orchestration system into Claude Code. It's feature-flagged off. The community found it anyway.
Read more →Anthropic credits Steve Yegge's Beads as inspiration for Claude Code's new task system. The pattern-to-product cycle continues.
Read more →For compliance, privacy, or just freedom from cloud dependencies - here's how to run Claude Code with local models via Ollama. No API calls leaving your machine.
Read more →A lookup table technique that improves search tool hit rates in autonomous loops. The detail that makes specs discoverable.
Read more →The methodology behind autonomous coding loops. Three phases, five files, and the backpressure that makes it converge.
Read more →Anthropic blocked third-party tools from using Claude subscriptions overnight. OpenCode, xAI, and power users caught in the crossfire. The era of subscription arbitrage is over.
Read more →Skills controllability, hooks limitations, plan mode friction - 2.1 addresses the documented pain points. Here's what changed and what's still missing.
Read more →Real footgun stories and the deterministic hooks that would've prevented them. From $30k API key leaks to nuked home directories.
Read more →Boris Cherny shared his workflow for the tool he built. The setup is surprisingly vanilla. The philosophy is worth studying.
Read more →ENABLE_EXPERIMENTAL_MCP_CLI eliminates MCP tool schema overhead entirely. Undocumented, untested in the wild, but it works. Here's what I found.
Read more →A CLI wrapper that lets you swap Claude Code's backend between Anthropic and OpenRouter with a single command. Pick any model, configure role-specific models, and switch between them instantly.
Read more →Two major open source coding models dropped in 48 hours. Both target Claude Code compatibility. Both MIT licensed. The economics of agentic AI just changed.
Read more →Claude Code can now control your actual Chrome browser. Not a headless session, not a fresh login - your Chrome, with your cookies and sessions. Build, test, and debug without context switching.
Read more →Claude Code is evolving on two fronts: expanding scope and polishing ergonomics. The combination makes it feel less like a CLI tool and more like a complete dev environment.
Read more →From 20 lines of shell to production apps. Anthropic renamed Claude Code SDK to Agent SDK because deep research is now a first-class use case.
Read more →Screenshots as source of truth, reference comparison to catch agent lies, and video capture for temporal bugs. How multimodal validation changes coding agent workflows.
Read more →Six plugins that extend Claude Code with specialized external tools: Gemini for visual analysis, Codex for architecture thinking, Headless for browser automation, Mobile for native app testing, DNS for multi-provider management, and Miro for board reading.
Read more →Steve Yegge and Gene Kim explain why Claude Code 'ain't it' yet, why senior engineers are resisting, and what next year's tools will actually look like.
Read more →Claude Code 2.0.64 adds .claude/rules/ with path matching. It's a welcome addition, but Cursor's had .cursor/rules/ for months. Here's the comparison.
Read more →Anthropic denied issues for weeks, then published a postmortem admitting three bugs degraded 16% of Claude requests. The pattern keeps repeating.
Read more →BMAD, Spec-Kit, Cline - frameworks that compensated for tool limitations. Plan Mode, Cursor 2.0, and Antigravity absorb the patterns natively.
Read more →Anthropic's first acquisition ever. A $183B AI company just bet their fastest-growing product on a JavaScript runtime. Claude Code hit $1B in 6 months - built on Bun.
Read more →Opus 4.5 shipped Plan Mode as a core workflow. The workarounds are obsolete. And the case for auto-compact finally tips in favor of enabling it.
Read more →The official Claude Code plugin that lets agents work autonomously for hours. When to use it, when not to, and the philosophy behind letting AI fail repeatedly until it succeeds.
Read more →277,000 installs later, Claude Code's plugin system is becoming the app store for AI development. The frontend-design skill was just the opening move.
Read more →Design systems from mockup to code in a single Claude Code session. Use Gemini 3 Pro to generate UI concepts, then implement them directly.
Read more →Claude's new model ships with defer_loading for tools. The MCP isolation patterns I built are now (mostly) obsolete.
Read more →My AI workflow evolved from 'Claude does everything' to specialized tools for each task. React Grab fills the UI extraction gap I didn't know I had.
Read more →Claude Code for development, Gemini 3 Pro for visual analysis, research, and deep thinking. A slash command that routes tasks to the right model.
Read more →Hooks-based skill activation solves context selection (which guidelines? which tools?) but not workflow orchestration. Both patterns have their place.
Read more →From Chrome DevTools experiment to universal MCP wrapper: progressive discovery works with any server, Skills integration, and smart deduplication
Read more →Skills are auto-invoked by Claude's judgment. For engineering workflows that need predictability, slash commands give you explicit control.
Read more →Claude Code loves to jump straight into implementation. Sometimes you need a model that thinks first. Here's how I use Codex for systems thinking and architecture decisions.
Read more →How to use slash commands to keep specialized MCP tools isolated from your main conversation context.
Read more →Building a multiplayer trivia app solo with AI coding tools. Here's what worked, what didn't, and the trade-offs no one talks about.
Read more →MCPs, subagents, and automation are tempting. But the developers getting the most from Claude Code aren't rushing to advanced features - they're mastering the fundamentals.
Read more →Converting a Ghost blog to Astro in a single late-night session with Claude Code, reducing memory usage by 75% while learning what AI coding tools actually solve
Read more →