OpenRouter — unified API gateway to many models. Reads `OPENROUTER_API_KEY`.

Parse a Google error JSON body and return the appropriate ProviderError.

Strip YAML frontmatter (--- ... ---) from content and parse it. Returns (frontmatter, body_without_frontmatter).

Parse a unified diff string into a list of `FilePatch` objects.

Derive a PKCE code challenge from a verifier (S256 method).

Move focus to the previous field.

Append a character to the rename input buffer.

Record that `tip_id` was shown during `session_num`.

Record one completed turn: increment turns_used, add elapsed seconds.

Register a new task. Returns the assigned task ID.

Render the desktop upsell startup dialog as a centered modal.

Render the diff dialog overlay.

Render the elicitation dialog as a centered modal overlay.

Render a file-read tool result: `Read N lines` summary.

Attempt to render `source` as an inline image. If an image protocol is available and the source carries base64 data, the appropriate escape sequence

Render the memory update notification into `area`.

Render the model picker overlay directly into `buf`. Draws a centred modal (≈70 wide × ≈22 tall) with: - Fast-mode notice when fast mode is active -

Render the overage credit upsell banner into `area`.

Render the session browser overlay directly into `buf`. Draws a centred modal (≈70 wide × ≈20 tall) with: - A scrollable list of sessions (id, title,

Render the session as a complete, standalone HTML document.

Render a thinking block (collapsible - show header only when collapsed).

Render the voice mode availability notice.

Replace the full text buffer and move the cursor to the end.

Restore the terminal to its original state.

Run all hooks registered for the given event. Returns the first blocking result if any hook blocks, otherwise `Allowed`.

Same as [`run_oauth_flow`] but lets the caller supply a label for the newly registered profile.

Same as [`run_oauth_login_flow`] but lets the caller supply a human-friendly label for the new profile (e.g. "work"). When `label` is `None` the profi

Spawn the reader loop. Inbound requests and notifications are forwarded to `tx`. Responses are matched against `connection.pending` internally. The fu

Select a random spinner verb.

Encode mono 32-bit float PCM samples as a 16-bit mono WAV file. The returned byte vector can be POSTed directly to the Whisper API as `audio/wav`.

Sanitize a team name to a safe directory component.

Persist the registry to disk. Best-effort but propagates I/O errors.

Save these tokens, register/refresh a profile in the account registry, and mark it active. Returns the profile id used. If `label` is None, derives t

Save Codex OAuth tokens, registering and activating a profile. Returns the profile id. If a profile with a matching account_id already exists, reuses

Move selection down one row, wrapping to the start.

Move the cursor down.

Get the currently selected item (if any).

Set mark `name` at the current cursor position.

Replace the model list with dynamically loaded entries. Called by the app event loop when the background fetch completes. Resets `loading_models` and

Set the terminal window title via OSC escape sequence.

Set up the terminal for TUI mode (raw mode + alternate screen + mouse capture). Also installs a panic hook that restores the terminal before printing

Gracefully shut down the server.

Recursively sort all object keys (mirrors `sortKeysDeep` in TypeScript).

Return a styled status badge `Span` suitable for the status bar. Returns `None` when the state should not be shown (Disconnected).

Spawn all `Stop` hooks in fire-and-forget background tasks. Stop hooks are non-blocking by design: the caller does not wait for them. Returns an empt

Validate all fields and, if valid, submit the form. Returns `true` if the form was submitted, `false` if validation failed.

Replace `{env:VARNAME}` patterns in a string with environment variable values. Missing variables are replaced with an empty string.

Summarise `messages[..split_at]` using the Anthropic API using the carefully crafted compaction prompt from TypeScript prompt.ts. Returns a new conver

Switch the active profile for a provider. Returns `Err` if the id does not exist.

Consume the dialog state, returning every non-empty `(provider_id, key)` pair the user entered.

Produce a `ToolDefinition` suitable for sending to the API.

Toggle full error detail for the currently selected server.

Truncate `s` to fit within `max_width` display columns, appending `…` if cut.

Truncate `MEMORY.md` content to `MAX_ENTRYPOINT_LINES` lines and `MAX_ENTRYPOINT_BYTES` bytes, appending a warning when either cap fires. Mirrors `tr

Attempt to copy text to the system clipboard using platform CLI tools. Returns true if successful.

Returns `true` if `content` contains the unlock signal and the gate was opened as a result (or was already open).