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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

/usage

slash never mined documented JSON

A Claude Code slash command, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.

Show session cost, plan usage limits, and activity stats. On a Pro, Max, Team, or Enterprise plan, includes a breakdown of what counts against your plan limits. /cost and /stats are aliases

Anthropic's own wording. Read off Commands, captured 2026-09-28.

First seen — never in a mined build
Last seen — never in a mined build
Builds0 / 149on this box, as of v2.1.308
Written about v2.0.0 first named in a changelog, 29 Sep 2025

In the changelogs

23

Releases whose published page names /usage.

  1. v2.1.305
    /usage can suggest ways to save and queue a fix for you

    /usage can now point out what is costing you most and suggest fixes such as /compact or lower effort, which you can queue as a follow-up

    found in this entry's text, named in this entry

  2. v2.1.305
    /usage can suggest ways to use less of your plan and queue the fixes for you

    /usage can now look through your recent sessions, suggest ways to use less of your plan, and queue the fixes you choose as prompts

    found in this entry's text, named in this entry

  3. v2.1.305
    A review checklist can now include what /usage found

    A review prompt can now add a check listing what /usage measured over the last 7 days, asking the model to report each item with its share

    found in this entry's text, named in this entry

  4. v2.1.304
    /usage now says when you can try again after a rate limit

    When /usage is rate limited, its message now shows when it can be tried again instead of saying "try again in a moment"

    found in this entry's text, named in this entry

  5. v2.1.290
    Remote Control users can run /effort, /model, /rename and /usage while Claude is working

    Someone connected through Remote Control can now run /effort, /model, /rename and /usage straight away while Claude is mid-reply

    found in this entry's text, named in this entry

  6. v2.1.284
    Gateway guide explains how to show dollar amounts in /usage and the status line

    The bundled gateway guide now tells operators how to serve spending data so /usage and the status line can show dollars

    found in this entry's text, named in this entry

  7. v2.1.284
    Gateway sign-ins can see dollar spend against their limit

    With gateway sign-in and a spend limit, the status line data and usage panel now show dollars used, the limit and the period

    named in this entry

  8. v2.1.281
    /stats footer shows the date-cycle hint only on the tabs view

    The /stats footer now shows the date-cycling and copy hints only on the tabs view

    found in this entry's text, named in this entry

  9. v2.1.281
    /stats dialog no longer grabs focus on open

    The /stats dialog no longer takes keyboard focus on its header when it opens

    found in this entry's text, named in this entry

  10. v2.1.280
    Rate-limit/overage info gained monthly and channel-scoped overage tracking, plus a 'grace' state

    Rate-limit status data now includes monthly and channel overage utilization plus a grace-period flag

    found in this entry's text, named in this entry

  11. v2.1.277
    Usage-limit display can show a per-model breakdown

    Usage/limit displays can now show a separate line per model instead of one combined limit

    found in this entry's text, named in this entry

  12. v2.1.273
    New structured /usage response schema, explicitly marked experimental

    The /usage command gains a formally defined, still-experimental structured data schema

    found in this entry's text, named in this entry

  13. v2.1.273
    /usage command result gains a structured payload

    The /usage command's reply can now carry structured data, not just the readable text report

    found in this entry's text, named in this entry

  14. v2.1.261
    Two new SDK control-protocol request types: get_usage and reload_output_styles

    SDK gains get_usage and reload_output_styles requests for pulling usage data and refreshing styles mid-session.

    found in this entry's text

  15. v2.1.223
    Stats dialog gets a Suspense fallback, a taller frame and a colour fix

    The usage stats dialog is taller, loads more smoothly, and its model chart colours no longer skip.

    named in this entry

  16. v2.1.221
    Session state moves onto a pluggable storage backend

    Session history, resume and usage can now read from a pluggable backend, though files are still used.

    named in this entry, found in this entry's text

  17. v2.1.221
    Usage stats now count and show cache tokens

    Usage stats now count cache tokens and show a read/write breakdown per model.

    named in this entry

  18. v2.1.187
    Skill token footprint in /usage

    found in this entry's text

  19. v2.1.119
    Slash Command Aliases

    found in this entry's text

  20. v2.1.118

    found in this entry's text

  21. v2.1.118
    Unified /usage Command (replaces /cost)

    found in this entry's text

  22. v2.0.52
    Extra Usage Display in /usage

    found in this entry's text

  23. v2.0.0
    /usage Command

    found in this entry's text

First cited

2

The earliest release whose published evidence quoted /usage was v2.1.261, 4 Sep 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.

ReleaseDateThe span that was quoted
v2.1.2614 Sep 2026Requests the structured /usage data: session cost/usage totals plus claude.ai plan rate-limit utilization when available. Experimental - the response shape may change.
v2.1.30520 Oct 2026Fix what /usage flagged. Show me each change before you make it.

Presence across releases

0

The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the slash command does. All slash commands.

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