Claude Report — 2026-09-22
- Anthropic ships no new official Claude Code/API/model news in the Sep 19–22 window — a quiet post-weekend stretch.
- MCP ecosystem stays busiest: chrome-devtools-mcp finishes its "SDK v2" migration, serena ships a dozen language-backend fixes.
- codebase-memory-mcp keeps shipping CI-classifier and graph-quality fixes daily through Sep 22.
- ECC, a Claude Code agent/skill/hook harness, lands a burst of security fixes across gateguard and hooks.
- Community skill exchange ASE adds a new "concept-to-story" PDF learning workflow skill.
🚀 Anthropic Official
No relevant news today. Checked: anthropic.com/news, claude.com/blog, the Claude Code and API release-notes pages, the anthropic-sdk-python/anthropic-sdk-typescript/claude-agent-sdk-python/claude-agent-sdk-typescript changelogs, and status.anthropic.com — every dated entry found falls on or before Sep 19 03:10 UTC (Claude Code v2.1.278 / SDK v0.3.278, already covered in yesterday's report) or earlier (Fable/Mythos 5.1, Claude for Financial Advisors, Claude for Small Business, the biomolecular-modeling research post — all dated Sep 1–17).
🔌 Claude Code Plugins
Plugin tracking skipped this run — official marketplace install-count cache unavailable.
🛠️ Skills
eugeniughelbur/obsidian-second-brain
Merges a fix for stale slash-command names referenced in docs (#305, Sep 21), closing out the Sep 19–20 vault-plugin-coexistence and SessionStart-hook-naming work already reported.
affaan-m/ECC
Ships a dense run of fixes across its Claude Code agent/skill/hook harness: sanitizes invisible-unicode denial paths and detects quoted destructive SQL in gateguard, stops a failed skill-comply step from passing evidence downstream, scopes session-start summary lookups to repository identity, and confines the frontend-slides export server to its deck directory (Sep 19–21).
agentskillexchange/skills
Adds a new community-submitted "concept-to-story" Codex PDF learning-workflow skill (#75, Sep 22) on top of its usual automated publish-sync commits.
Unchanged in window: addyosmani/agent-skills (same security-hardening/hook-regression merges already reported through Sep 20, nothing new since), cloudflare/security-audit-skill (last real commit Sep 14), K-Dense-AI/scientific-agent-skills (only an automated scan-report commit Sep 21), tt-a1i/archify (only a cosmetic Astro website migration Sep 21), ayghri/i-have-adhd (only docs/translation PR merges Sep 19).
🤖 Agents & Subagents
None of the top 3 tracked updated in window.
Unchanged in window: nicobailon/pi-subagents (v0.70.1 already reported yesterday, no new release), VoltAgent/awesome-claude-code-subagents (only a README edit Sep 21), anthropics/commerce-agents (no commits since Aug 31).
🔗 MCPs & Integrations
DeusData/codebase-memory-mcp
Keeps shipping fixes daily: a Swift nested-URL-constructor fix, graph-quality improvements post-v0.11.0, a CI file-classifier fallback for large diffs and large file lists, a Go CGO pseudo-import fix, and new contributing guidelines for AI-assisted commits (Sep 21–22).
ChromeDevTools/chrome-devtools-mcp
Merges the "migrate the MCP SDK to v2" refactor (#2408) it opened last week, plus fixes preserving underlying error messages in input-tool actions, correcting lighthouse_audit's emulated user agent, bounding ConsoleCollector retention per navigation, and setting a default pageSize/pageIdx for get_css_styles (Sep 21–22).
oraios/serena
Expands well beyond last week's two fixes: upgrades to MCP SDK v2.2.0, fixes a Dart rootUri/rootPath omission, stops tool-context memory renames aborting on read-only memories, expands unmatched-group backreferences to empty strings, derives project lists on access instead of caching them, corrects a dashboard fallback-warning f-string, and skips .csproj files excluded by project ignore settings (Sep 19–21).
Unchanged in window: upstash/context7 (same four doc-only commits already reported), github/github-mcp-server (last commit Sep 16), modelcontextprotocol/ext-skills (only a CODEOWNERS update Sep 18).
💡 Community — Workflows & Ideas
No relevant news today.
📰 Quick Mentions
- awesome-mcp-servers batch adds a dozen new third-party MCP servers — AbaPay, Mail MCP, Velog MCP, Kilter MCP, FeatureFlip MCP and others merged in a single day (Sep 21).