Read a stored MCP OAuth token (None if not found or invalid).

Return the `ShadowSnapshot` for `working_dir`, creating it on first call. Returns `None` when git is unavailable or the directory is not in a repo.

Height the banner occupies (0 if not visible).

Navigate history down (newer).

Navigate history up (older).

Append a character to the active text/url/enum-typeahead field.

Mark that a non-kill action occurred (resets consecutive kill combination).

Greedy bin-packing: pack entries into batches that each serialise to ≤ `MAX_PUT_BODY_BYTES`. Entries that individually exceed the limit go into singl

Parse word-boundary @ tokens from text. Returns (within_limit, oversized). If max_size_kb == 0, oversized is always empty (accept all).

Parse YAML frontmatter from the first `FRONTMATTER_MAX_LINES` lines without a full YAML parser. Returns `(name, description, memory_type)`. Mirrors

Extract all numeric IDs from reference patterns in `input`.

Process a keystroke, returns action if binding matches

Append a character to the filter string and reset the selection.

Render an agent notification line with a severity level. severity: "info" (cyan), "warn" (yellow), "error" (red).

Render bash output lines truncated to `max_lines` with an overflow indicator.

Render a tool result (error variant).

Decide how to route a user-facing model id into the chain.

Recursively scan `team_dir` for `.md` files, returning entries sorted by key.

Update the active model name (also updates config + cost tracker).

Show the normal onboarding (first-run with credentials already configured).

Split plain text into spans with URL/email detection and styling. URLs and emails are styled with cyan color and underline.

Stop the capture stream and return the accumulated samples. Returns `(samples, sample_rate)`. The sample buffer is empty when no recording was in pr

Select the next suggestion.

Take the current input buffer, push it to history, and return it.

For boolean or multi-enum fields: toggle the current selection.

Toggle collapsed state for the currently selected file.

Wrap a logical line into visual chunks of `width` terminal cells. Empty input yields a single empty chunk so the caller can still place a cursor.

Record usage for a model, accumulating into `model_breakdown`. `cost` is in USD (not cents).

Attach the authorization header if an API key is configured.

Attach all configured extra headers.

Build the per-attempt (provider, model) sequence for a given request.

Build the OpenAI authorization URL for Codex OAuth.

Build the full request body JSON for the Gemini API.

Return the ~/.claurst directory.

Create a new cloud session.

Send a non-streaming `POST /v1/messages` and return the full response.

For enum fields: cycle to the next option.

Decode PNG or JPEG image data into RGBA pixels.

Return the provider-prefixed default model name for a given provider, consulting the registry first and falling back to a `provider/default` placehold

Compute the delay for a given `attempt` number (0-indexed). Applies exponential back-off with ±10 % jitter derived from the current system time (no e

Dismiss the currently visible notification.

Return the effective `Config`, merging top-level provider settings into the embedded `config` field. - `settings.provider` wins over `settings.config

End the span (no-op).

Ensure the store has been loaded from disk (once per process).

Convert raw sync entries into the `SyncedData` structure. The user settings entry is parsed as JSON; memory files are kept as-is.

Replace `[Pasted text #N]` / `[Pasted text #N +X lines]` placeholders in `input` with the actual text from `contents`. Image references (`[Image #N]`

Expand env vars in every string field of a `McpServerConfig`. Returns a new owned config; the original is not modified.

All tools across all servers, filtered by search query.

Find a style by its `name` field.

Format the raw compact summary by stripping `<analysis>` and cleaning up `<summary>` XML tags. Mirrors `formatCompactSummary` from TypeScript prompt.

Format a 10-char line-number gutter.

Derive the PKCE code challenge from a verifier: BASE64URL(SHA256(verifier)).

Generate a 32-byte random code verifier, base64url-encoded (no padding).

Get the active goal for a session (status = 'active' only).

Walk up the directory tree to find the nearest `.git` directory.

Access the global `VoiceRecorder` instance. Callers should call `set_enabled(true)` and update the config before invoking `start_recording`.

Handle a key event while a permission dialog is active.

Returns true if the text (up to cursor) contains a word-boundary `@` token, meaning an `@file` reference is actively being typed.