Thariq

A write-up from the Claude Code team on stripping roughly 80% of the system prompt for newer models, and what that exercise taught them about writing system prompts, skills, and CLAUDE.md files for more capable coding models.

Thariq makes the case for switching from Markdown to HTML as the default agent output format. Argues HTML is richer (tables, SVG, CSS, interactivity), easier to share, and keeps you more in-the-loop with what Claude is generating — even though it's 2-4x slower to produce than Markdown.

A slash command that turns an unfamiliar module or incident into a picture heavy explainer.

An article by Thariq exploring how to work effectively with Claude's Fable system, drawing on the insight that 'the map is not the territory.' It guides readers on understanding the gap between their prompts/context and the actual work being done by AI. Useful for developers and creators trying to get more out of AI-assisted workflows.

An update to Claude Code's /usage view, shaped by how differently people manage sessions, and what the move to a one-million-token context changes about when to start a new one.

Claude's text watermark changes where sampling randomness comes from rather than which words get picked, which is why output quality is unaffected. Anthropic is rolling it out for EU AI Act compliance; an interactive explainer walks the mechanism step by step.

Claude Code adds `claude plugin eval init`, so developers can define test cases, run a plugin or skill against them with and without the plugin, and score the delta to catch regressions when new models ship.

Anthropic's Thariq argues auto mode is safer than manual review of individual commands, announcing its default rollout with no added latency cost for the classifier.

A user observation that connecting a Claude Connector (Gmail, Calendar, Slack, etc.) to Claude also makes that connection available within Claude Code, including inside Artifacts, a behavior many users may not realize.

Anthropic's Thariq frames Claude's text watermarking as EU AI Act compliance work that other labs are also adopting, with a public text-detection API coming.

Anthropic is embedding invisible watermarks across everywhere Claude is offered. The mark lives in the text rather than in metadata, travels with copy-paste and can persist through some editing, with a detection API planned — enough to ask whether a PR came from Claude Code.

Anthropic's Thariq breaks down what 'effort' actually controls in Claude models: more verification and edge-case testing at high effort, faster iteration at low/medium, illustrated with Terminal-Bench 3.0 results and a practical build loop.

Latent Space talks with Anthropic's Thariq Shihipar about Claude Code's next phase, alongside a recap of Anthropic's recent releases including Sonnet 5.5, Opus 5.5, Claude Mods, and the plugins portal.

Anthropic's Thariq Shihipar covers Claude Code power-user workflows, Mods for rewriting the harness, multiplayer agents, mutable software, and agent security incidents with defenses like sandboxing, classifiers, and probes.

Anthropic released Claude Haiku 5.5, its small model, with a sharp price cut: about 10x cheaper than Haiku 4.5 under 100k tokens and roughly 75% cheaper on average. Available for computer use, workflows and the API.

Claude Max and Team plans now include monthly Claude Platform API credits. An Anthropic engineer demos a daily-generated new tab page on Managed Agents and Sonnet 5.5, costing about $0.75 per run.

Anthropic is launching enterprise safeguards for Fable class models that run on a customer's own infrastructure, giving teams control over data location and access, with wider rollout planned for the fall.