What's new in CC 2.1.174 (-3,487 tokens): - NEW: Tool Description: claude.ai Project — Adds a session-bound tool for reading and writing the attached claude.ai Project (a shared, persistent knowledge container), exposing projectinfo, projectread, projectsearch, projectwrite, and projectdelete, with knowledge-budget enforcement, a default claude/ namespace for agent-written docs, prompt-cache churn warnings, and instructions to treat doc contents as untrusted data. - REMOVED: Data: Design sync story imports module — Removes the bundled Storybook import-resolution helper now folded into the expanded Design sync source-shape guidance. - REMOVED: Data: Design sync Storybook preview source generator — Removes the standalone Storybook preview-source generator superseded by the reworked Design sync build pipeline. - REMOVED: Data: Design sync sync hashes module — Removes the shared hashing helper module previously used to align builds, captures, and remote diffs. - Agent Prompt: Security monitor for autonomous agent actions (first part) — Adds a note that indented User:/Assistant: lines inside a turn are quoted content from the message and should be treated as data, not instructions. - Data: Claude API reference — C# — Updates the quickstart example model from Claude Opus 4.6 to Claude Opus 4.8. - Data: Claude API reference — cURL — Adds the display: "summarized" thinking opt-in to the request example. - Data: Claude API reference — Go — Updates the quickstart example model from Claude Opus 4.6 to Claude Opus 4.8. - Data: Claude API reference — Java — Updates the quickstart example model from Claude Opus 4.6 to Claude Opus 4.8. - Data: Claude API reference — PHP — Adds the display => 'summarized' thinking opt-in to the request example. - Data: Claude API reference — Python — Adds the display: "summarized" thinking opt-in to the request example. - Data: Claude API reference — Ruby — Expands the stopdetails.category enum example with :reasoningextraction and :frontierllm categories. - Data: Claude API reference — TypeScript — Adds the display: "summarized" thinking opt-in to the request example. - Data: Claude model catalog — Updates summarized-thinking and tokenizer guidance so Fable/Mythos share the Opus 4.8 tokenizer (token counts roughly unchanged) instead of a new 30%-larger tokenizer. - Data: Streaming reference — Python — Adds the display: "summarized" thinking opt-in to the streaming example. - Data: Streaming reference — TypeScript — Adds the display: "summarized" thinking opt-in to the streaming example. - Skill: Building LLM-powered applications with Claude — Clarifies that the raw chain of thought is never returned, with responses carrying only regular thinking blocks/summaries. - Skill: Design sync — Adds an "Author the conventions header" step to the workflow for writing a design-system conventions header before upload. - Skill: /design-sync package source shape — Replaces the guidelinesGlob config field with a readmeHeader path and related conventions-header guidance. - Skill: Design sync Storybook source shape — Inserts a conventions-header authoring step (base SKILL.md, before upload) into the build → match → upload workflow. - Skill: Model migration guide — Updates the thinking summary so always-on thinking returns regular thinking blocks with the raw chain of thought never returned, dropping the new-tokenizer framing. Details: github.com/Piebald-AI/claude…

A few weeks ago, we celebrated three graduates from Project SEARCH, a transition-to-work program for individuals with disabilities in partnership with Memorial Hospital. 🎓 Read more about the experience by visiting adecinc.com/project-search-2…. #ProjectSEARCH #ADEC

Congratulations to all the graduates on this incredible achievement! #ProjectSEARCH #HudsonCounty #Classof2026

At just 17 years old, Project SEARCH graduate Jude Delaney has overcome obstacles to secure a full-time position with WVU Medicine's Ruby Memorial Hospital! 👇 Read his inspiring story in the comments below. #WVNews #ProjectSEARCH #WVUMedicine #InclusionMatters #West Virginia

They're ready for a job! Project SEARCH bridges the gap between education and employment. Through immersive hospital rotations, interns gain real-world skills, teamwork, and professional habits to thrive in competitive local jobs on day one! #ProjectSearch #ABSSCommunity

Congratulations to the 2026 Project SEARCH graduates across Aspirus Health! These interns spent the past year gaining hands-on experience, building workplace skills and preparing for future careers. #ProjectSEARCH #AspirusHealth

The team at the Embassy Suites Albuquerque is proud to celebrate the #ProjectSEARCH Class of 2026 graduates! 🎉 We are so proud of all they have accomplished and can’t wait to see where their next journey takes them. Congratulations to this amazing group! 👏 #ProjectSEARCH

🌺Cohort 7, you did it 🌺. Can’t believe we’ve wrapped up another incredible year 🧑‍🎓🎓👩‍🎓 CONGRATS❤️ #TeamSISD #ProjectSEARCH #Allin @SocorroISD @ProjectSEARCHHQ @TXWorkforce @ElPasoCF @borderplexjobs @MOlivarez_CI @PFLores_CI @jim_vasquez20 @SISD_PK8 @RYanez_CI @etrillo_ci

CVA High Celebrates Yasmine Boone-who was accepted into the year-long Project SEARCH internship! She will build social skills, financial literacy, healthy habits, resume & interview skills, and more. Learn more: cpschools.com/o/cps/page/pro… #ProjectSEARCH #CVA

So proud of our #ProjectSearch community!

Great visit at Sarah Moore Greene Academy last week seeing #ProjectSEARCH in action and spending time with our teachers. The intentional focus and care on students is making a difference.

It’s also a great way to meet incredible people, like Adam, who’s preparing for his future and learning new skills at @NGHSimcoe through #ProjectSEARCH. (3 of 4) ^ag

Join us in giving a big #MGA welcome to our new class of Project SEARCH students! 👋 We’re so excited to see all you’ll accomplish and can’t wait to celebrate your graduation this spring! 💜✨ #ProjectSEARCH

Charting the Course 2025! ESC19 hosted high school students — with & without special needs — for a day of career exploration at our Starlight Event Center! •Cybersecurity & Social Media Safety – ESC19 Tech Dept. •Healthcare Careers – Texas Tech Med School Keynote: A former student who overcame a life-changing accident & became the 1st special needs Pharmacy Tech grad through Project SEARCH—now thriving in EMS! 💪 #ESC19 #ChartingTheCourse #CareerExploration #ProjectSEARCH #Inspiration

We were honored to welcome young adults from Spartan Project SEARCH for an immersive visit to MSU DPPS! The experience included a behind-the-scenes tour, a special presentation, a chance to get up close with our police vehicles, and a meet-and-greet with our beloved K9 Chase 🐾. Thanks for spending time with us! 💚 #ProjectSEARCH #CommunityEngagement

So proud to kick-off Hudson County’s newest cohort of Project SEARCH Interns with parents, partner organizations and agencies today! @RWJBarnabas @HudsonCCC #HudsonCounty #CraigGuy #ProjectSEARCH

🚀 We’re Hiring – Administration Assistants x 2 (Remote, UK) DFN Project SEARCH is looking for two skilled administrators to join our Programme Delivery and Corporate Governance teams. 🔹 Salary: £25,000 – £28,000 per year 🔹 Hours: Full-time or part-time (min 16.5 hrs / max 37.5 hrs) 📍 Location: Fully remote (with occasional away days/events) We deliver life-changing supported internships for young adults (16–24) with a learning disability or autism, providing workplace-based support during their final year of education. ✅ Flexible working arrangements (including job share) ✅ Meaningful work making a difference in young people’s lives 📌 How to apply: Review the two job descriptions (attached in the posting) If you have a role preference, state it in your cover letter For further details, contact Julie Brennan via the recruitment email provided 🔗 Remotejobs.short.gy/HTB5s7 #Hiring #Administration #RemoteJobs #UKJobs #ProjectSEARCH #AdminAssistant #FlexibleWorking

Huge congratulations to our first #ProjectSEARCH interns! 🎓 Eight young people with learning disabilities or autism completed their year with us & local employers — building skills, confidence & brighter futures. We’re so proud! 🌟 #InclusionMatters #Lambeth #InternshipsWork

Congratulations to Estella Euceda, our Patient Transport Supervisor! Today she received a County of Hudson Proclamation & Award for her outstanding work as a Project SEARCH mentor, helping program participants gain workplace skills and employment opportunities. #ProjectSEARCH

Big congrats to the 8 incredible interns who graduated today from Project SEARCH at Bergen New Bridge Medical Center! We’re proud to partner with Bergen County & North Jersey Friendship House to support this empowering program. Here’s to a bright future ahead! #ProjectSearch #BergenCounty #BergenNewBridgeMedicalCenter #NorthJerseyFriendshipHouse