Status line

Agent name when running with the `--agent` flag or agent settings configured

All tokens written to the cache this session, the first request's initial write included

Whether any response this session reported cache tokens. `false` means prompt caching is off, or your provider or gateway doesn't report it

Maximum context window size in tokens. 200000 by default, or 1000000 for models with extended context.

Token counts from the last API call, described in context window fields

Pre-calculated percentage of context window remaining

Token counts currently in the context window, from the most recent API response. Input includes cache reads and writes

Token counts currently in the context window, from the most recent API response. Input includes cache reads and writes

Pre-calculated percentage of context window used

Total time spent waiting for API responses in milliseconds

Estimated session cost in USD, computed client-side at list price unless a `modelPricing` table is in effect. May differ from your actual bill. Resets to \$0 when `/clear` starts a new session. Before v2.1.211, the total carried over after `/clear`

Total wall-clock time since the session started, in milliseconds

Lines of code changed

Lines of code changed

Current working directory. Both fields contain the same value; `workspace.current_dir` is preferred for consistency with `workspace.project_dir`.

Current reasoning effort (`low`, `medium`, `high`, `xhigh`, or `max`). Reflects the live session value, including mid-session `/effort` changes. Ultracode is not a distinct level and reports as `xhigh`. Absent when the current model does not support the effort parameter

Whether the total token count (input, cache, and output tokens combined) from the most recent API response exceeds 200k. This is a fixed threshold regardless of actual context window size.

Cache rebuilds that followed a compaction or a clearing of old tool results

When the cached prefix leaves its TTL and goes cold, in epoch seconds. `null` when the last response reported no cache tokens

Whether fast mode is enabled for the session

Cache read tokens as a fraction of all input tokens this session, from 0 to 1. The denominator counts cache reads, cache writes, and uncached input. `null` while those counts are all zero

When the last miss happened, in epoch seconds. `null` while the session has no misses

Tokens written to the cache by the requests counted as misses

Requests that re-processed content the cache already held: more than 5% and at least 2,000 tokens of what the request could have read from cache, with no compaction or tool-result clearing to explain the shortfall in cache reads

Current model identifier and display name

Current model identifier and display name

Name of the current output style

`mr` when `pr` describes a GitLab merge request. Absent for GitHub pull requests, so scripts written before this field keep working. For a merge request, Claude Code sets `review_state` to `approved` when GitLab reports it mergeable, `pending` for any other open state, and `draft` for a draft. Requires Claude Code v2.1.234 or later

Open pull request for the current branch. Mirrors the PR badge in the footer. In a repository with a GitLab remote, Claude Code fills these fields from the branch's open merge request instead, so `pr.number` is the merge request number. Merge request data requires Claude Code v2.1.234 or later. Absent when not in a git repository, until a pull request or merge request is found, or once it merges or closes

Review status of the open PR: `approved`, `pending`, `changes_requested`, or `draft`. May be independently absent even when `pr` is present

Open pull request for the current branch. Mirrors the PR badge in the footer. In a repository with a GitLab remote, Claude Code fills these fields from the branch's open merge request instead, so `pr.number` is the merge request number. Merge request data requires Claude Code v2.1.234 or later. Absent when not in a git repository, until a pull request or merge request is found, or once it merges or closes

The session's prompt cache statistics for the main conversation: hit ratio, misses, and whether the cache is warm. See prompt cache fields for every field. Absent until the main conversation's first API response. Requires Claude Code v2.1.251 or later

UUID identifying the user prompt currently being processed. Matches the `prompt.id` attribute on OpenTelemetry events. Absent until the first user input. Requires Claude Code v2.1.196 or later

Unix epoch seconds when the 5-hour or 7-day rate limit window resets

Percentage of the 5-hour or 7-day rate limit consumed, from 0 to 100

Unix epoch seconds when the 5-hour or 7-day rate limit window resets

Percentage of the 5-hour or 7-day rate limit consumed, from 0 to 100

Behind a Claude apps gateway, the percentage used of the spend limit that applies to you, and the Unix epoch seconds when its period resets. The percentage runs from 0 to 100, or above 100 once you exceed the limit. Requires Claude Code v2.1.251 or later

Behind a Claude apps gateway, the percentage used of the spend limit that applies to you, and the Unix epoch seconds when its period resets. The percentage runs from 0 to 100, or above 100 once you exceed the limit. Requires Claude Code v2.1.251 or later

Tokens the next request re-caches if the cache has gone cold by then. `null` right after a compaction or a clearing of old tool results, until the next request records the rewritten conversation's size

API requests recorded for the main conversation this session

Unique session identifier

Session name. Uses the custom name set with the `--name` flag or `/rename` when one exists, otherwise the AI-generated session title. The default display name, such as `my-app-3f`, doesn't populate this field. Absent when the session has neither a custom name nor an AI-generated title

Whether extended thinking is enabled for the session

Path to conversation transcript file

Cache lifetime of the current cached prefix: `"5m"` or `"1h"`

Claude Code version

Current vim mode (`NORMAL`, `INSERT`, `VISUAL`, or `VISUAL LINE`) when vim mode is enabled

Whether the cached prefix is still within its TTL. `false` when the last response reported no cache tokens, even while `caching_observed` is `true`

Additional directories added via `/add-dir` or `--add-dir`. Empty array if none have been added

Current working directory. Both fields contain the same value; `workspace.current_dir` is preferred for consistency with `workspace.project_dir`.

Git worktree name when the current directory is inside a linked worktree created with `git worktree add`. Absent in the main working tree. Populated for any git worktree, unlike `worktree.*`, which is present only while the session is in a worktree session

Directory where Claude Code was launched, which may differ from `cwd` if the working directory changes during a session

Repository identity parsed from the `origin` remote, for example `"github.com"`, `"anthropics"`, `"claude-code"`. Absent outside a git repository or when no `origin` remote is configured

Repository identity parsed from the `origin` remote, for example `"github.com"`, `"anthropics"`, `"claude-code"`. Absent outside a git repository or when no `origin` remote is configured

Repository identity parsed from the `origin` remote, for example `"github.com"`, `"anthropics"`, `"claude-code"`. Absent outside a git repository or when no `origin` remote is configured

Git branch name for the worktree (for example, `"worktree-my-feature"`). Absent for hook-based worktrees

Name of the active worktree. Present only while the session is in a worktree session

Git branch checked out before entering the worktree. Absent for hook-based worktrees

The directory Claude was in before entering the worktree

Absolute path to the worktree directory