An entry is only as true as the day it was written.
Flags move on the server after a release ships. Anthropic's own notes land days later and their documentation later still. Sometimes an entry turns out to be wrong and gets corrected by hand. All of that is recorded against the entry it happened to, and this is the whole of it in the order it happened.
Nothing here replaces an entry. Every line links to the page its release published, still saying what that release said, because a correction is added and dated rather than swapped in.
| When | Entry | What happened |
|---|---|---|
v2.1.283claude-opus-5-5 |
Documentation arrivedA small documentation edit on prompting-claude-opus-5-5 touched a line naming claude-opus-5-5 after this was published.
the line in the docs* **Reasoning extraction:** Requests that push the model to reproduce its internal reasoning in the response text may be declined with the `reasoning_extraction` category. If your prompts ask the model to write out its reasoning in the res… |
|
v2.1.282claude-opus-5-5 |
Documentation arrivedA small documentation edit on prompting-claude-opus-5-5 touched a line naming claude-opus-5-5 after this was published.
the line in the docs* **Reasoning extraction:** Requests that push the model to reproduce its internal reasoning in the response text may be declined with the `reasoning_extraction` category. If your prompts ask the model to write out its reasoning in the res… |
|
v2.1.281claude-opus-5-5 |
Documentation arrivedA small documentation edit on prompting-claude-opus-5-5 touched a line naming claude-opus-5-5 after this was published.
the line in the docs* **Reasoning extraction:** Requests that push the model to reproduce its internal reasoning in the response text may be declined with the `reasoning_extraction` category. If your prompts ask the model to write out its reasoning in the res… |
|
v2.1.283claude-opus-5 |
Documentation arrivedA small documentation edit on prompting-claude-opus-5-5 touched a line naming claude-opus-5 after this was published.
the line in the docs* **Reasoning extraction:** Requests that push the model to reproduce its internal reasoning in the response text may be declined with the `reasoning_extraction` category. If your prompts ask the model to write out its reasoning in the res… |
|
v2.1.282claude-opus-5 |
Documentation arrivedA small documentation edit on prompting-claude-opus-5-5 touched a line naming claude-opus-5 after this was published.
the line in the docs* **Reasoning extraction:** Requests that push the model to reproduce its internal reasoning in the response text may be declined with the `reasoning_extraction` category. If your prompts ask the model to write out its reasoning in the res… |
|
v2.1.284/effort |
Documentation arrivedAnthropic's documentation has since written up /effort, on claude-prompting-best-practices.
the line in the docs* **Manual chain-of-thought (CoT) prompting as a fallback.** When thinking is off, you can still encourage step-by-step reasoning by asking Claude to think through the problem before it answers, and to put the final answer in `<answer>` ta… |
|
v2.1.286ANTHROPIC_API_KEY |
Documentation arrivedAnthropic's documentation has since written up ANTHROPIC_API_KEY, on RBAC Groups.
the line in the docs-H "X-Api-Key: $ANTHROPIC_API_KEY" \ |
|
v2.1.206tengu_umber_kestrel |
Flag reading movedThe flag server now returns on for tengu_umber_kestrel, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"allowanceNote":"{percent} allowance left","budgetExhaustedCopy":"You've used this week's lower-priority allowance","cooloffMinutes":10,"enabled":true,"label":"Continue now at lower priority","noticeLine":"/low-priority to continue now at lower priority · uses your weekly limit","statusLine":"Lower priority until {reset}","version":3,"waitBanner":"Working at lower priority · waiting for capacity"} for tengu_toasty_breeze, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"allowanceNote":"{percent} allowance left","budgetExhaustedCopy":"You've used this week's lower-priority allowance","cooloffMinutes":10,"enabled":true,"label":"Continue now at lower priority","noticeLine":"/low-priority to continue now at lower priority · uses your weekly limit","statusLine":"Lower priority until {reset}","version":3,"waitBanner":"Working at lower priority · waiting for capacity"} for tengu_toasty_breeze, read as this account. | |
v2.1.273tengu_quiet_dolphin |
Flag reading movedThe flag server now returns on for tengu_quiet_dolphin, read as this account. | |
v2.1.248tengu_nifty_lemur |
Flag reading movedThe flag server now returns {"autoContinue":true,"enabled":true,"label":"Reset your session limit now","noticeLine":"/limit-reset to reset your session limit now · uses weekly limit · 1/week","spentLine":"Weekly reset used · available again {date}","successLine":"Session limit reset · next reset available {date} · your weekly limit still applies","unavailableLine":"Couldn't reset your session limit right now · try again in a moment","version":1} for tengu_nifty_lemur, read as this account. | |
v2.1.248tengu_nifty_lemur |
Flag reading movedThe flag server now returns {"autoContinue":true,"enabled":true,"label":"Reset your session limit now","noticeLine":"/limit-reset to reset your session limit now · uses weekly limit · 1/week","spentLine":"Weekly reset used · available again {date}","successLine":"Session limit reset · next reset available {date} · your weekly limit still applies","unavailableLine":"Couldn't reset your session limit right now · try again in a moment","version":1} for tengu_nifty_lemur, read as this account. | |
v2.1.284tengu_lantern_wick_text |
Flag reading movedThe flag server now returns "Usage limit reached; a short grace allowance remains, then this turn is cut off without warning. Judge what's left: if it's genuinely only a few steps, finish it properly, then stop and say so without extra polishing. Otherwise don't attempt it all: finish the piece in hand and at most two more like it, then stop. The allowance also pays for any subagents you have running: they don't get this message and will keep going, so it's up to you how to handle them. Either way, end by telling the user their usage limit was reached, what's done and what's left." for tengu_lantern_wick_text, read as this account. | |
v2.1.223tengu_juniper_relay |
Flag reading movedThe flag server now returns on for tengu_juniper_relay, read as this account. | |
v2.1.251tengu_juniper_relay |
Flag reading movedThe flag server now returns on for tengu_juniper_relay, read as this account. | |
v2.1.206tengu_umber_kestrel |
Flag reading movedThe flag server now returns off for tengu_umber_kestrel, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_toasty_breeze, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_toasty_breeze, read as this account. | |
v2.1.273tengu_quiet_dolphin |
Flag reading movedThe flag server now returns off for tengu_quiet_dolphin, read as this account. | |
v2.1.248tengu_nifty_lemur |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_nifty_lemur, read as this account. | |
v2.1.248tengu_nifty_lemur |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_nifty_lemur, read as this account. | |
v2.1.284tengu_lantern_wick_text |
Flag reading movedThe flag server now returns null for tengu_lantern_wick_text, read as this account. | |
v2.1.223tengu_juniper_relay |
Flag reading movedThe flag server now returns off for tengu_juniper_relay, read as this account. | |
v2.1.251tengu_juniper_relay |
Flag reading movedThe flag server now returns off for tengu_juniper_relay, read as this account. | |
v2.1.206tengu_umber_kestrel |
Flag reading movedThe flag server now returns on for tengu_umber_kestrel, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"allowanceNote":"{percent} allowance left","budgetExhaustedCopy":"You've used this week's lower-priority allowance","cooloffMinutes":10,"enabled":true,"label":"Continue now at lower priority","noticeLine":"/low-priority to continue now at lower priority · uses your weekly limit","statusLine":"Lower priority until {reset}","version":3,"waitBanner":"Working at lower priority · waiting for capacity"} for tengu_toasty_breeze, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"allowanceNote":"{percent} allowance left","budgetExhaustedCopy":"You've used this week's lower-priority allowance","cooloffMinutes":10,"enabled":true,"label":"Continue now at lower priority","noticeLine":"/low-priority to continue now at lower priority · uses your weekly limit","statusLine":"Lower priority until {reset}","version":3,"waitBanner":"Working at lower priority · waiting for capacity"} for tengu_toasty_breeze, read as this account. | |
v2.1.273tengu_quiet_dolphin |
Flag reading movedThe flag server now returns on for tengu_quiet_dolphin, read as this account. | |
v2.1.248tengu_nifty_lemur |
Flag reading movedThe flag server now returns {"autoContinue":true,"enabled":true,"label":"Reset your session limit now","noticeLine":"/limit-reset to reset your session limit now · uses weekly limit · 1/week","spentLine":"Weekly reset used · available again {date}","successLine":"Session limit reset · next reset available {date} · your weekly limit still applies","unavailableLine":"Couldn't reset your session limit right now · try again in a moment","version":1} for tengu_nifty_lemur, read as this account. | |
v2.1.248tengu_nifty_lemur |
Flag reading movedThe flag server now returns {"autoContinue":true,"enabled":true,"label":"Reset your session limit now","noticeLine":"/limit-reset to reset your session limit now · uses weekly limit · 1/week","spentLine":"Weekly reset used · available again {date}","successLine":"Session limit reset · next reset available {date} · your weekly limit still applies","unavailableLine":"Couldn't reset your session limit right now · try again in a moment","version":1} for tengu_nifty_lemur, read as this account. | |
v2.1.284tengu_lantern_wick_text |
Flag reading movedThe flag server now returns "Usage limit reached; a short grace allowance remains, then this turn is cut off without warning. Judge what's left: if it's genuinely only a few steps, finish it properly, then stop and say so without extra polishing. Otherwise don't attempt it all: finish the piece in hand and at most two more like it, then stop. The allowance also pays for any subagents you have running: they don't get this message and will keep going, so it's up to you how to handle them. Either way, end by telling the user their usage limit was reached, what's done and what's left." for tengu_lantern_wick_text, read as this account. | |
v2.1.223tengu_juniper_relay |
Flag reading movedThe flag server now returns on for tengu_juniper_relay, read as this account. | |
v2.1.251tengu_juniper_relay |
Flag reading movedThe flag server now returns on for tengu_juniper_relay, read as this account. | |
v2.1.265ui.open |
Documentation arrivedAnthropic's documentation has since written up ui.open, on Mods reference.
the line in the docs* **Height of a `Pane` above the prompt**: where `e.props.placement` is `'inline'`, the pane grows with your tree up to a limit, and `bodyRows` counts only the rows showing now. The [`rows` field of `$.ui.open`](/docs/en/plugins/mods/inter… |
|
v2.1.265ui.open |
Documentation arrivedAnthropic's documentation has since written up ui.open, on Mods reference.
the line in the docs* **Height of a `Pane` above the prompt**: where `e.props.placement` is `'inline'`, the pane grows with your tree up to a limit, and `bodyRows` counts only the rows showing now. The [`rows` field of `$.ui.open`](/docs/en/plugins/mods/inter… |
|
v2.1.265ui.open |
Documentation arrivedAnthropic's documentation has since written up ui.open, on Mods reference.
the line in the docs* **Height of a `Pane` above the prompt**: where `e.props.placement` is `'inline'`, the pane grows with your tree up to a limit, and `bodyRows` counts only the rows showing now. The [`rows` field of `$.ui.open`](/docs/en/plugins/mods/inter… |
|
v2.1.265ui.open |
Documentation arrivedAnthropic's documentation has since written up ui.open, on Mods reference.
the line in the docs* **Height of a `Pane` above the prompt**: where `e.props.placement` is `'inline'`, the pane grows with your tree up to a limit, and `bodyRows` counts only the rows showing now. The [`rows` field of `$.ui.open`](/docs/en/plugins/mods/inter… |
|
v2.1.259claude-code.d.ts |
Documentation arrivedAnthropic's documentation has since written up claude-code.d.ts, on Mods reference.
the line in the docsThe complete reference is Claude Code's [TypeScript declarations for mods](https://github.com/anthropics/claude-code/blob/main/mods/types/claude-code.d.ts), which describe every event, method, and element, with examples. The copy on GitHub… |
|
v2.1.259claude-code.d.ts |
Documentation arrivedAnthropic's documentation has since written up claude-code.d.ts, on Mods reference.
the line in the docsThe complete reference is Claude Code's [TypeScript declarations for mods](https://github.com/anthropics/claude-code/blob/main/mods/types/claude-code.d.ts), which describe every event, method, and element, with examples. The copy on GitHub… |
|
v2.1.259claude-code.d.ts |
Documentation arrivedAnthropic's documentation has since written up claude-code.d.ts, on Mods reference.
the line in the docsThe complete reference is Claude Code's [TypeScript declarations for mods](https://github.com/anthropics/claude-code/blob/main/mods/types/claude-code.d.ts), which describe every event, method, and element, with examples. The copy on GitHub… |
|
v2.1.265ui.invalidate |
Documentation arrivedAnthropic's documentation has since written up ui.invalidate, on Draw in the interface with a mod.
the line in the docsClaude Code limits how often it redraws a site, so your mod can call `$.ui.invalidate` as often as its data changes. The visible pane and the band have a higher limit than other sites, and the [limits table](/docs/en/plugins/mods/reference… |
|
v2.1.259ui.invalidate |
Documentation arrivedAnthropic's documentation has since written up ui.invalidate, on Draw in the interface with a mod.
the line in the docsClaude Code limits how often it redraws a site, so your mod can call `$.ui.invalidate` as often as its data changes. The visible pane and the band have a higher limit than other sites, and the [limits table](/docs/en/plugins/mods/reference… |
|
v2.1.259claude-code.d.ts |
Documentation arrivedA small documentation edit on Create a mod touched a line naming claude-code.d.ts after this was published.
the line in the docsEach time Claude Code loads or reloads a mod from a directory you pass to `--plugin-dir`, or a mod [Claude wrote for you](#ask-claude-for-a-mod), it writes TypeScript declaration files, ending in `.d.ts`, into `.claude-plugin/types/` insid… |
|
v2.1.259claude-code.d.ts |
Documentation arrivedA small documentation edit on Create a mod touched a line naming claude-code.d.ts after this was published.
the line in the docsEach time Claude Code loads or reloads a mod from a directory you pass to `--plugin-dir`, or a mod [Claude wrote for you](#ask-claude-for-a-mod), it writes TypeScript declaration files, ending in `.d.ts`, into `.claude-plugin/types/` insid… |
|
v2.1.259claude-code.d.ts |
Documentation arrivedA small documentation edit on Create a mod touched a line naming claude-code.d.ts after this was published.
the line in the docsEach time Claude Code loads or reloads a mod from a directory you pass to `--plugin-dir`, or a mod [Claude wrote for you](#ask-claude-for-a-mod), it writes TypeScript declaration files, ending in `.d.ts`, into `.claude-plugin/types/` insid… |
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v2.1.285tengu_ccr_stream_flush_on_first_delta |
Flag reading movedThe flag server now returns on for tengu_ccr_stream_flush_on_first_delta, read as this account. | |
v2.1.206tengu_umber_kestrel |
Flag reading movedThe flag server now returns off for tengu_umber_kestrel, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_toasty_breeze, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_toasty_breeze, read as this account. |