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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.219 ·

Pinned memories are injected into the session

Adding pinned: true to a memory file's frontmatter would apply it to every session automatically.

Nothing to try yet Notable No documentation found In Development
JSON All of v2.1.219
Nothing to try yetTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
MemoryArea: what it touches
In DevelopmentKind: in v2.1.219,
What probably matters to youSection of the release

Pinned-memory scanning and injection are gated on tengu_stone_shell with a false fallback and suppressed by CLAUDE_COWORK_MEMORY_INDEX_CONTENT.

What

Memory files whose frontmatter carries pinned: true are injected so they apply to every session rather than only when retrieved.

Details
  • Pinned files are scanned, sorted by mtime, capped in count, and truncated when oversized
  • Frontmatter documentation now describes the pinned field
  • New one-shot telemetry event tengu_memdir_pinned_injected reports pinned_file_count, pinned_injected_count, pinned_injected_chars, truncated and malformed counts
  • New scan-failure paths log "memory_scan_readdir_failed" and "pin_scan_failed"
  • Gated on tengu_stone_shell with fallback false, and suppressed entirely when CLAUDE_COWORK_MEMORY_INDEX_CONTENT is set
Evidence

tengu_memdir_pinned_injected

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Read from
Names in the bundlepinned: trueCLAUDE_COWORK_MEMORY_INDEX_CONTENT
Feature flag
tengu_stone_shell Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.219: off

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.219. It isn't a statement about your account. What a flag value here can and cannot tell you

What has happened since
Flag reading moved The flag server now returns off for tengu_stone_shell, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading moved The flag server now returns nothing at all, having stopped carrying it for tengu_stone_shell, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

See this across every release →

See this entry in the whole of v2.1.219 →

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