Hail

Buys a real phone number. It charges the setup fee and the first month now and renews monthly. Call quote_numbers first. Pass the offer's quote_id, country_code, number_type, and confirm_total_cents = monthly_cents + setup_cents from that offer. If the quote expired or the price changed (409) you get an error: quote again. Only buy when your user asked for this number. After buying, call route_number to point it at an agent. A quote buys at most one number. After a timeout, retry with the same quote_id and idempotency_key, or check list_numbers. Never request a new quote after a timeout. ``idempotency_key`` is optional; to retry after a timeout or a 5xx, pass the ``idempotency_key`` that result returned, so the number is bought once. A 4xx error returns no key: the API remembers that failure under it, so drop it and quote again. ``verification_id`` picks which approved verification buys a number that needs one: the ``id`` of an approved entry in the offer's ``verifications``. Pass it when more than one is approved: show the user each ``subject_name`` (the person's or company's name) and ask which. With one approved, it is used. ``subject_type`` (``person`` or ``business``) is optional: it keeps only that kind. A 422 on ``verification_id`` means several are approved and none was picked, or the id is not an approved verification for this number. Returns the number (``id``, ``e164``, ``provisioning_state``, ``verification_id``, ``subject_name``, ...) plus ``idempotency_key``, or ``{"error": "<message>", "idempotency_key": ...}``.

Cancel a verification that has not been sent for review, or dismiss a rejected one (needed before submitting a new one for the same country and number type). The draft is discarded. Works in state ``awaiting_review`` or ``rejected``, and for an ``approved`` US SMS registration (``purpose: "sms"``): its numbers leave the campaign, US-to-US texts from them fail again, and its monthly fee stops after the current month. Some registrations bill at least 3 monthly fees from approval, so cancelling sooner can still charge 3 months. Ask the user first. A ``submitting`` or ``submitted`` verification is under review and cannot be cancelled (409): wait for the result with get_verification. Returns the verification with ``state: "cancelled"``, or ``{"error": "<message>"}``.

When a registration shows confirmation 'code', ask the person for the code the carrier texted and submit it here. ``verification_id`` comes from submit_verification or list_verifications. ``code`` is 4 to 10 characters. A wrong or expired code is an error naming ``code``; the carrier sends a new one after a day. On success the registration moves on; poll get_verification until ``approved``. A ``confirmation`` of ``reply`` means the person answers the carrier's text instead; nothing is entered here. Returns the verification or ``{"error": "<message>"}``.

Save an agent. Then call ``route_number`` so a number answers with it, or pass its id as ``agent_id`` to ``place_call``. ``system_prompt`` is what the agent follows. ``first_message`` is spoken after the AI line; omit it to let the caller speak first. ``ai_disclosure_line`` replaces the workspace AI line for this agent; ``{org}`` becomes the organization name. ``language`` is a lowercase ISO 639-1 code. ``max_duration_seconds`` is 60..3600. ``handover_max_duration_seconds`` (60..3600, default 1800) is the call limit once a handover contact answers. ``handover_contacts``: People the agent may hand a live call to: ``[{contact_id, note}]`` (max 10; ``note`` 1-200 chars says when to hand over). ``contact_id`` is an id from ``list_contacts``: a contact's uuid, or ``member:<user id>`` for a team member. The person needs a phone number. The agent never sees it. Returns the API's ``AgentResponse`` as a dict, or ``{"error": "<message>"}``.

Save a new contact for the workspace. Provide at least one of ``phone_e164`` (E.164, e.g. ``+14155551234``) or ``email`` — the API rejects (422) a contact with neither. A duplicate phone or email on an existing contact returns 409. Example: create_contact(name="Maya Chen", phone_e164="+14155551234") Returns the created contact entry as a dict. On failure returns ``{"error": "<message>"}`` instead.

Delete a saved agent. DESTRUCTIVE. Ask the user before calling this. Numbers that used the agent stop answering with it: calls ring out and texts reach webhooks only. Reroute them first with ``route_number`` if that matters. ``confirm_name`` must equal the agent's ``name``. The tool reads the agent first and refuses with ``{"error": ...}`` on a mismatch, without deleting anything. To stop an agent without deleting it, use ``update_agent`` with ``status="paused"``. Returns ``{"deleted": true, "agent_id", "name"}``, or ``{"error": "<message>"}``.

Fetch one saved agent by id. ``agent_id`` comes from ``list_agents`` or ``create_agent``. Returns the ``AgentResponse`` as a dict (``name``, ``system_prompt``, ``first_message``, ``ai_disclosure``, ``voice_config``, ``tools``, ``voice_enabled``, ``sms_enabled``, ``status``, ...), or ``{"error": "<message>"}``.

Fetch the current state of one call by id. Use this after ``place_call`` (or to check on any prior call) to read the call's latest ``status`` and timing fields. Returns the API's ``CallResponse`` as a dict, or ``{"error": "call not found"}`` for an unknown id.

Fetch the full record of one email by id. Returns the complete row — including ``body_text`` / ``body_html`` and (for inbound mail) the ``in_reply_to`` / ``message_id`` headers and ``spam``/``virus``/``spf``/``dkim``/``dmarc`` verdicts. Use this after ``list_emails`` to read a received reply's body. Returns the API's ``EmailResponse`` as a dict, or ``{"error": "resource not found"}`` for an unknown id.

Get a fetchable URL for one inbound email attachment. ``attachment_id`` comes from an item in ``get_email``'s ``attachments`` list. Returns ``{"url": "<presigned-s3-url>"}`` — a short-lived (~5 minute) link to the attachment bytes, fetchable directly with no auth header. Unknown ids return ``{"error": "resource not found"}``.

Delivery/engagement timeline (sent→delivered→opened…) for one email. Chronological lifecycle events for a single email — use this to see exactly what happened to one message (bounced? opened? clicked?) rather than the account-wide aggregates ``get_email_stats`` returns. Returns ``{"items": [...], "next_cursor": ...}`` where each item has ``kind`` (one of sent, delivered, delivery_delayed, bounced, complained, rejected, opened, clicked), ``payload``, and ``occurred_at``. ``opened`` and ``clicked`` only occur for emails sent with an HTML body. A plain-text-only email still gets sent, delivered, and bounce events, but opens and clicks are never tracked. Pass ``cursor`` from a previous ``next_cursor`` to page (``limit`` 1..1000, default 100). On failure returns ``{"error": "resource not found"}`` for an unknown id.

Get a fetchable URL for an email's original MIME source. Returns ``{"url": "<presigned-s3-url>"}`` — a short-lived (~5 minute) link to the full raw RFC822 message. Fetch the URL directly to read the complete original; it needs no auth header. Raw source exists for **inbound** mail only — outbound ids return ``{"error": "resource not found"}``.

Account-level email deliverability stats (counts, rates, time series). Aggregates across your whole organization's outbound mail over a window — use this for "how's deliverability doing" rather than one message's history (``get_email_events`` covers that). ``from_`` / ``to`` are ISO 8601 timestamps (defaults: last 7 days ending now). ``bucket`` is ``"day"`` (default) or ``"hour"`` — ``"hour"`` is limited to an 8-day span; any range is capped at 92 days. Returns ``{"from": ..., "to": ..., "bucket": ..., "totals": {...}, "rates": {...}, "series": [...]}`` — ``totals``/each ``series`` bucket carry counts (sent, delivered, bounced, opened, ...) and ``rates`` carries derived ratios (delivery, bounce, open, click), each ``None`` when ``totals.sent`` is 0. Open and click numbers only count HTML emails. Plain-text-only emails are never tracked for opens or clicks, so they lower those rates. On failure returns ``{"error": "<message>"}`` instead.

Page through events from across the org or one resource. Pass ``id="<type>:<uuid>"`` to narrow to a single resource — supported types are ``call``, ``email``, and ``sms`` (e.g. ``id="sms:<uuid>"`` after ``send_sms``). When narrowed to a call, the response includes a ``call_status`` field reflecting the call's current state. Without ``id``, returns events from across the whole org. ``kind`` filters server-side by event kind (``state_change``, ``agent_turn``, ``user_turn``, ``tool_call``, ``error``, ...). This is **not** a streaming subscription — the call returns whatever events exist now plus a ``next_cursor`` if more pages remain. To follow a call to completion, loop: pass the previous response's ``next_cursor`` until ``next_cursor`` is null and, when narrowed to a call, ``call_status`` is one of ``completed``, ``failed``, ``busy``, ``no_answer``, ``canceled`` (the terminal set). Example: get_events(id="call:0c2f...-...", limit=200) Returns ``{"items": [...], "next_cursor": <str|None>, "call_status": <str|None>}`` on success, or ``{"error": ...}`` on a malformed ``id`` or upstream failure.

Fetch one dedicated number by id: its state, capabilities and which agents answer its calls and texts. ``number_id`` comes from ``list_numbers``. Returns the ``PhoneNumberResponse`` as a dict, or ``{"error": "<message>"}``.

Fetch the current state of one SMS by id. Use this after ``send_sms`` to check delivery status. Example: get_sms(sms_id="...")

Fetch one verification and its state. Use it to poll. There is no notification, and review takes business days. Poll every few minutes to hours, not every few seconds; the state refreshes from the carrier at most once a minute. On ``approved``: call quote_numbers again. The offer is now ``ready``; then acquire_number. On ``rejected``: read ``rejection_reason``, ask the user, dismiss it with cancel_verification, then submit a new one. ``verification_id`` comes from submit_verification or list_verifications. Returns ``{"id", "state", "rejection_reason", ...}`` or ``{"error": "<message>"}``.

Read what the carrier needs to verify the organization before it can buy a number. Call this when quote_numbers shows an offer with ``readiness == "verification_required"``. Read-only. ``country_code`` is ISO alpha-2 (for example ``"GB"``). ``number_type`` is ``local``, ``mobile``, ``national`` or ``toll_free``. ``subject_type`` is required: ``person`` (the user) or ``business`` (the user's company). Never guess it: ask the user "you or your company?". The result's ``subject_types`` lists what the carrier accepts. The organization may hold one verification of each. ``quote_id`` is the offer's ``quote_id`` from quote_numbers. It is required for ``purpose='number'``: the form is the one for that offer. ``purpose`` is ``number`` (default, to buy a number) or ``sms``. ``purpose='sms'`` registers the organization to text US numbers from a US number (country_code US, number_type local). Fees are charged from credit per step: when the details are submitted, when the carriers start their review, then monthly after approval. If the error says to pass ``number_id``, pass the ``id`` of one of the organization's US numbers from list_numbers. Returns ``required`` (false means no verification is needed and submit_verification would fail), ``fields`` (values to collect), ``documents`` (slots, each with ``options``), ``address_required``. A field of kind ``choices`` takes several of its ``options``: send their keys joined by commas (for example ``"CUSTOMER_CARE,DELIVERY_NOTIFICATION"``), between ``min_choices`` and ``max_choices`` of them. A field with ``max_length`` takes at most that many characters, counted in UTF-16 code units (an emoji counts as 2); a longer value is refused (422). Skip any document slot whose ``needs_input`` is false: do not send it.…

List the workspace's saved agents: the brains that answer calls and texts on its numbers, and that ``place_call`` can use via ``agent_id``. Returns ``{"items": [{"id", "name", "system_prompt", "first_message", "ai_disclosure", "ai_disclosure_line", "voice_config", "tools", "max_duration_seconds", "handover_max_duration_seconds", "voice_enabled", "sms_enabled", "status", "handover_contacts"}, ...]}``.

List recent calls in your organization, newest first. Cursor-paginated: pass the previous response's ``next_cursor`` to fetch the next page. ``status`` (one of queued, dialing, ringing, in_progress, completed, failed, busy, no_answer, canceled) and ``to`` (E.164) are optional server-side filters. Returns a dict ``{"items": [...], "next_cursor": <str|None>}``.

List the workspace's contacts: org members (with their phone/email) plus manually saved contacts. Use ``lookup_contact`` for name searches. ``q`` optionally filters server-side (matches name/email/phone). ``limit`` caps the page (server default 100, max 500). Returns ``{"items": [{"id", "kind", "name", "phone_e164", "email", "role"}, ...]}`` — ``kind`` is ``"member"`` (id ``member:<user_id>``, ``role`` set) or ``"manual"`` (id is the contact's UUID, ``role`` null).

List the addresses this workspace can send email from. Call this BEFORE ``send_email`` when you do not already know the ``from_`` address — do not guess a domain. Returns ``{"items": [...], "next_cursor": ..., "default_from": ...}``. Each item carries ``domain``, ``kind`` (``"custom"`` or ``"hail_mail"``) and ``verification_status``; only ``"verified"`` rows can send. A ``custom`` item's ``domain`` is a bare DNS name that accepts any local-part (``sales@acme.com``); a ``hail_mail`` item's ``domain`` is already a full address. ``default_from`` is the address a ``send_email`` with no ``from_`` goes out as. A verified custom domain wins over the hail-mail address. It is null when the workspace has several verified custom domains — then ``send_email`` rejects a missing ``from_`` and you must pass one from ``items``. Example: list_email_domains()

List emails in your organization, newest first. Cursor-paginated: pass the previous response's ``next_cursor`` to fetch the next page. Two optional server-side filters: * ``direction`` — ``outbound`` or ``inbound``. Pass ``direction="inbound"`` to read replies and other received mail. * ``status`` — one of ``queued``, ``sent``, ``failed``, ``bounced``, ``complained``, ``received``. Items are trimmed summaries (no message body). Call ``get_email`` with an item's ``id`` to read the full body. Example: list_emails(direction="inbound") Returns ``{"items": [...], "next_cursor": <str|None>}`` on success, or ``{"error": "<message>"}`` instead.

List the US state and Canadian province codes that quote_numbers accepts as ``region`` (optional, with ``city``). Returns ``{"regions": [{"country_code", "code", "name"}]}``, such as ``{"country_code": "US", "code": "AZ", "name": "Arizona"}``, or ``{"error": "<message>"}``.

List the workspace's dedicated phone numbers, newest first. ``limit`` is 1..200 (default 50). Pass the returned ``next_cursor`` as ``cursor`` for the next page. Returns ``{"items": [{"id", "e164", "country_code", "number_type", "capabilities", "provisioning_state", "voice_agent_id", "sms_agent_id", ...}], "next_cursor"}``, or ``{"error": "<message>"}``.

Page through recent SMS messages for your organization. ``status`` filters to one of: queued, sent, delivered, failed, undelivered, received. ``to`` filters to messages sent to a specific E.164 number. Paginate with the returned ``next_cursor``.

List the organization's carrier verifications, newest first. ``purpose`` is ``number`` or ``sms``; only that kind is listed. Omit to see every registration. ``purpose='sms'`` lists the registrations to text US numbers from a US number. Returns ``{"items": [{"id", "country_code", "number_type", "subject_type", "subject_name", "purpose", "state", "rejection_reason", "created_at", "updated_at", "submitted_at", "approved_at", "confirmation", "step", "identity_confirmed"}]}``. ``step`` says where a US texting filing in progress is: ``confirm_identity``, ``filing`` or ``carrier_review``. ``identity_confirmed`` on a person's newest filing, when cancelled or rejected: the next one with the same person needs no code. Dismiss a rejected filing first. ``state`` is ``awaiting_review``, ``submitting``, ``submitted``, ``approved``, ``rejected`` or ``cancelled``. Use it to check whether a submission already exists before submitting again. ``confirmation`` ``code``: call confirm_verification with the code the carrier texted the person. Errors come back as ``{"error": "<message>"}``.

Find a contact by name, email, or phone fragment. Resolve a person to their ``phone_e164``/``email`` BEFORE calling ``place_call``, ``send_sms``, or ``send_email`` — do not guess a contact's number. Returns up to 10 matches, same item shape as ``list_contacts``. Example: lookup_contact(query="maya")

Originate an outbound phone call. Provide ``system_prompt`` (mode A — Hail's bundled fallback LLM uses this prompt) or ``llm`` (mode B — bring your own OpenAI-compatible endpoint as ``{"base_url": ..., "api_key": ..., "model": ...}``), or both, or ``agent_id`` (a saved agent from ``list_agents`` supplies the prompt, first message, AI line, voice and tools; fields you pass here win). At least one is required. Passing both runs your prompt on your own endpoint: it receives Hail's voice preamble plus your prompt as the leading system message. ``to`` must be E.164 (e.g. ``+14155551234``). ``from_`` is optional and defaults to the first active number on your org. ``first_message`` is spoken verbatim on pickup; omit it to let the agent open the conversation itself — it reacts to how the call was answered, or introduces itself after silence. ``language`` sets the call's spoken language for speech-to-text, text-to-speech, and turn detection, as a lowercase ISO 639-1 code (e.g. ``"da"``); 39 languages are supported (server rejects others with 422); omit for English. STT provider selection is console-BYO-only (no per-call override); configure it on the organization to pin a provider. ``ai_disclosure=False`` skips the spoken "this is an AI assistant" line at the start of the call. Leave enabled unless the user has verified it is not required for this call — US artificial-voice calls (47 CFR 64.1200(b)(1)) and several AI bot-disclosure laws require it, and Hail does not verify this. The agent still identifies itself as an AI if asked. ``recording_enabled``: omit it to follow the agent, then the workspace recording setting. ``true`` records this call and ``false`` does not, whatever the workspace setting. Pass it only when the user asked fo…

Compare live phone-number offers from the carriers. Read-only: it buys nothing and charges nothing. ``country_code`` is an ISO alpha-2 code such as ``"US"``. ``capabilities`` is ``["voice"]``, ``["sms"]`` or both (default). ``number_type`` is ``local``, ``mobile``, ``national`` or ``toll_free``; omit it to compare all types. ``area_code`` is an area code or the first digits of the number, as dialed in the country: ``"020"`` (London), ``"480"`` (Arizona). ``city`` is a city name such as ``"London"``. Each offer has ``locality`` and ``region`` (such as ``"Phoenix"``, ``"AZ"``): check them, since city names repeat across states. ``region`` (optional, with ``city``) is a US/CA state code; list_number_regions lists them. Omit all three to search the whole country. Returns ``{"offers": [...], "recommended_quote_id", "expires_at"}``. Each offer has ``e164``, ``number_type``, ``capabilities``, ``monthly_cents``, ``setup_cents``, ``readiness``, ``requirements``, ``subject_types``, ``verifications`` and ``quote_id``. Money fields are cents (USD). Quotes expire in 10 minutes (``expires_at``); quote again after that. ``subject_types`` says who may verify for the number: ``person`` (the user), ``business`` (the user's company), or both; empty when no verification is needed. ``verifications`` lists the verifications the offer can be bought with (``id``, ``state``, ``subject_type``, ``subject_name``), approved first: those of an accepted subject type still under review, and the approved ones the carrier still accepts for the offer. ``subject_name`` is the person's or company's name from the verification form. When several are approved, show the user the names and ask which one buys the number; pass its ``id`` as ``verification_id`` to acquire_number.…

Release a phone number. DESTRUCTIVE and permanent. Calls and texts to the number stop. This month's fee and any earlier months are still billed. There is no refund. The number may not be recoverable. Ask the user before calling this. ``confirm_e164`` must equal the number's ``e164`` (for example ``"+14155550100"``). The tool reads the number first and refuses with ``{"error": ...}`` on a mismatch, without releasing anything. A number whose order is still pending cannot be released (409). A number whose order failed was never bought: the call only hides it from the list and returns ``{"dismissed": true, "number_id", "e164"}``. Returns ``{"released": true, "number_id", "e164"}``, or ``{"error": "<message>"}``.

Choose which agent answers a number's calls and texts. ``voice_agent_id`` makes the number answer calls with that agent (Hail registers it for inbound at the carrier and LiveKit); ``clear_voice=True`` stops answering calls. ``sms_agent_id`` makes the agent reply to texts; ``clear_sms=True`` stops that. A field left out keeps its value. ``number_id`` comes from GET /numbers. Returns the updated ``PhoneNumberResponse`` as a dict, or ``{"error": "<message>"}``.

Send an outbound email through your configured SES sender. ``to`` is a non-empty list of RFC-style email addresses. At least one of ``body_text`` / ``body_html`` is required (both is fine — multipart-alternative). Prefer including ``body_html``: open and click tracking only works for emails with an HTML body. A plain-text-only email still gets sent, delivered, and bounce events, but opens and clicks are never tracked. ``cc``, ``bcc``, and ``reply_to`` are optional and follow the usual mail conventions. Hail sets no ``reply_to`` of its own — to have replies reach the human running this session, call ``whoami`` and pass their ``email``. ``recipient_consent`` is required and must be the JSON boolean ``true`` (strings and numbers are refused): attest that you (the caller triggering this request) have obtained the lawful consent needed to email this recipient. The API rejects the request (422) if this is not ``true`` — Hail does not verify consent for you. Set ``message_type="marketing"`` for promotional email (this additionally requires a non-empty ``consent_source`` describing how/where consent was obtained) — leave as the default ``"informational"`` for transactional/service email. ``from_`` is optional while the workspace has one verified custom domain, which wins over the hail-mail address, or only a hail-mail address. With several verified custom domains, omitting it returns 422 listing them — call ``list_email_domains`` and pass one. With no verified sender, the server auto-mints a per-org hail-mail address of the form ``<user>+<org>@<base>`` if the operator configured ``HAIL_MAIL_BASE_DOMAIN`` (the ``<org>`` part is derived from your organization id; the ``<user>`` part comes from ``HAIL_MAIL_FROM``, from ``HAIL_MAIL_DEFAULT_USER_P…

Send an outbound SMS. ``to`` must be E.164 (e.g. ``+14155551234``). ``body`` is the message text. With no ``from_``: destinations where the sender-ID carrier delivers a dynamic alphanumeric sender ID unchanged (about 110 countries, see core/hailhq/core/sender_id_corridors.py) use your organization's sender ID (or ``HAIL``, the platform default); Australia (+61) may use ``HAIL`` instead; every other destination, including the US and Canada, uses your organization's oldest active SMS-capable number and the API returns 422 when there is none. SMS never uses the shared voice-call pool. ``recipient_consent`` is required and must be the JSON boolean ``true`` (strings and numbers are refused): attest that you (the caller triggering this request) have obtained the lawful consent needed to text this recipient. The API rejects the request (422) if this is not ``true`` — Hail does not verify consent for you. Set ``message_type="marketing"`` for promotional texts (this additionally requires a non-empty ``consent_source``) — leave as the default ``"informational"`` for transactional/service texts. ``idempotency_key`` defaults to a fresh UUID and is returned in the response under ``idempotency_key`` — pass the same value on a retry to replay rather than re-send. Example: send_sms(to="+14155551234", body="Your order shipped!", recipient_consent=True) Returns the ``SmsResponse`` dict (id, status, from_e164, to_e164, segment_count, ...). On failure returns ``{"error": "<message>"}`` instead.

Send the user's personal or company details and identity documents to the carrier for verification. IRREVERSIBLE: once submitted it cannot be cancelled, and the carrier keeps the documents. ``attest_authorized``: pass true only if the person or company named in these details and documents asked for this submission and gave you the details and files in this conversation. Never invent, guess, infer or reuse personal data or documents. Anything else: pass false (the call then sends nothing). ``purpose`` is ``number`` (default) or ``sms``. ``purpose='sms'`` registers the organization to text US numbers from a US number (country_code US, number_type local). The carrier fee is debited from credit at filing. Pass the same ``purpose`` to get_verification_requirements. For ``purpose='number'``, pass the same ``quote_id`` you passed to get_verification_requirements. For ``purpose='sms'``, pass the same ``number_id`` if you passed one. ``subject_type`` is required: ``person`` (the user) or ``business`` (the user's company), the same one passed to get_verification_requirements. Never guess it: ask the user "you or your company?". The verification is named after the person or company in the form (for example the business name, or the first and last name); it comes back as ``subject_name``. The organization may hold several verifications of one subject type (several people or companies). Steps: 1) call get_verification_requirements. 2) Ask the user for each field and file. 3) Call this once. Do not submit twice: a 409 means one with the same subject type and name already exists (see list_verifications). Arguments, as listed by get_verification_requirements: ``fields`` is ``{field name: value}``. ``address`` is ``{"customer_name", "street", "city…

Change a saved agent. Safe to repeat: the same call gives the same result. Only the fields you pass change; a field left out keeps its value. ``status`` is ``"live"`` or ``"paused"``; a paused agent does not answer. ``language`` is a lowercase ISO 639-1 code. Pass ``language`` or ``voice_id`` alone: the other value is kept. ``max_duration_seconds`` and ``handover_max_duration_seconds`` are 60..3600. ``handover_contacts`` replaces the whole list: ``[{contact_id, note}]`` (max 10) as in ``create_agent``; ``[]`` removes every contact. To remove a value, list its name in ``clear_fields``. Allowed: ``first_message`` (the agent waits for the caller), ``ai_disclosure_line`` (back to the workspace line), ``tools`` (back to all tools), ``max_duration_seconds`` (back to the workspace limit), ``handover_max_duration_seconds`` (back to 1800). Any other name is refused. Do not set and clear one field. Live calls keep the settings they started with. The change applies to the next call or text. Returns the updated ``AgentResponse`` as a dict, or ``{"error": "<message>"}``.

Upload a file to attach to a future outbound email. ``content_base64`` is the file's raw bytes, base64-encoded. Returns ``{"id": ..., "filename": ..., "content_type": ..., "size_bytes": ...}`` — pass ``id`` in ``send_email``'s ``attachment_ids`` list. The id is reusable across many sends and expires in 24h if never used. Files over 25MB (combined with the message body and any other attachments, per send) are rejected — host large files externally and link to them in the body instead.

Identify the human whose credentials this session runs under. Use it to sign or route mail as that person: pass their address as ``send_email(reply_to=...)`` so replies reach them rather than the sending domain, which is often an unattended ``noreply@``. Returns ``{"auth_kind", "organization_id", "user_id", "email", "name"}``. ``user_id``/``email``/``name`` are null when the server runs on a shared operator key (``auth_kind="shared"``) — there is no human behind it, so send without a ``reply_to``. Example: whoami()