This page tracks what we ship on developertoolkit.ai itself — new lessons, scorecards, integrations, design updates and fixes. For release notes about the tools we cover (Cursor, Claude Code, Codex), see Latest Updates.
New: /grill-me & /grill-with-docs — align before you buildTwo of Matt Pocock's most-installed skills: a relentless one-question-at-a-time interview that resolves every branch of your plan before you build — plus, with docs, a ubiquitous language (CONTEXT.md) and ADRs written as you go. Cross-linked from Plan mode. EN+PL.
New: 4 guides — /goal, /loop, shadcn/improve & ImpeccableCross-tool autonomous-run commands — /goal (native in Claude Code + Codex) and /loop (Claude Code) — plus deep-dives on two standout skills: shadcn/improve (audit with your best model, execute with a cheap one) and Impeccable (a design vocabulary that fixes AI slop).
New: MCP token-cost & skill-security guidesTwo new guides — reducing MCP token cost with code execution, and skill supply-chain security (SkillSpector) — plus Chrome DevTools MCP coverage and research-backed prompting updates.
Tool changelogs refreshed through June 18Claude Code v2.1.183 (Artifacts, nested subagents, implicit agent teams), Cursor 3.8 (/automate, cloud subagents), and Codex v0.141 + Record & Replay.
Claude Fable 5 covered site-wideModel comparison, routing strategies, pricing and the Claude Code changelog (v2.1.169–170) updated for Anthropic's new top-tier model, released June 9.
Cursor 3.6–3.7 documentedFull coverage of Canvas Design Mode, Design Mode in the browser, the Cursor SDK (custom tools + auto-review), and the Auto-review Run Mode.
Claude Code v2.1.156–168 documented`ultracode` is now the dynamic-workflow trigger keyword, plus fallback models, `.claude/skills` plugin auto-load, and auto mode on Bedrock/Vertex/Foundry.
11 new official skills publishersOpenAI, Google Gemini, LangChain, Vercel, Prisma, Convex, Deepgram, Box, Contentful, Contentstack and Base added to the official skills guide.
Latest Updates refreshedThe cross-tool release-notes hub now tracks June across Cursor, Claude Code and Codex in one place.
/grill-me & /grill-with-docs alignment skills — a relentless one-question-at-a-time agent interview that resolves your plan before you build, plus a ubiquitous language (CONTEXT.md) and ADRs with the docs variant; cross-linked from Plan mode and the skills ecosystem, EN+PL (Jun 24)
/goal & /loop autonomous-run guides — cross-tool coverage of goal-directed (/goal: Claude Code + Codex) and looping (/loop: Claude Code) agent runs, with Cursor and Codex equivalents mapped honestly, EN+PL (#129, Jun 24)
shadcn/improve & Impeccable skill deep-dives — an architecture audit that writes plans for cheaper executors, and a design vocabulary that catches AI slop; both verified across Claude Code, Cursor and Codex, EN+PL (#129, Jun 24)
Claude Fable 5 site-wide refresh — model guides, pricing, routing strategy and Claude Code changelog v2.1.169–170 (Jun 10)
Tool changelog refresh — Claude Code v2.1.156–168 (ultracode trigger keyword, fallback models, .claude/skills plugin auto-load, auto mode on Bedrock/Vertex/Foundry) and Cursor 3.6–3.7 (Canvas Design Mode, Cursor SDK, Auto-review Run Mode, Enterprise Organizations); Codex confirmed current at v0.137 (Jun 8)
11 new official skills publishers documented — OpenAI, Google Gemini, LangChain, Vercel, Prisma, Convex, Deepgram, Box, Contentful, Contentstack, Base (Jun 8)
Latest Updates + update tracker refreshed with June model/version coverage (Jun 8)