WebMCP Registry site · v0.18.35
Use Persona with your agent.
Persona (persona-chat.dev) registers 53 WebMCP tools. 17 of 53 tools declares readOnlyHint, so an agent can invoke them through tools.call. The registry runs the tool in a fresh headless page on persona-chat.dev and returns untrusted site content.
This page mirrors the WebMCP Registry listing for persona-chat.dev, last live-checked by the registry at 2026-09-21T21:13:41.531Z. Run ghostget webmcp sites.get --input '{"domain":"persona-chat.dev"}' --json for the current schema; the listing can drift between checks.
Use Persona with my agent
Ghostget's bundled webmcp adapter speaks to the public WebMCP Registry, so an agent always reads this site's current tool schema instead of a stale hard-coded copy. Install v0.18.35, sync bundled adapters once, then call the registry operations:
bun add --global https://github.com/hraness/ghostget/releases/download/v0.18.35/hraness-ghostget-0.18.35.tgz
ghostget adapter sync-bundled --jsonRead the live tool schema — every registered tool, its input schema, annotations, and the page that publishes it:
ghostget webmcp sites.get --input '{"domain":"persona-chat.dev"}' --jsonCall a read-only tool — the registry refuses anything not declared readOnlyHint and returns the site's answer as untrusted content:
ghostget webmcp tools.call --input '{"domain":"persona-chat.dev","tool":"check_contrast","input":"{}"}' --jsonRegistered WebMCP tools
Persona publishes 53 tools on persona-chat.dev; 17 declare readOnlyHint.
| Tool | What it does | Callable through Ghostget |
|---|---|---|
add_element | Add one element (text box, rectangle, ellipse, line, or image) to a slide. Lines draw from the top-left to the bottom-right corner of their bounding box. Returns the new element id. | Listed for discovery; the registry allows read-only calls only |
add_slide | Insert a new slide from a layout. 'title' = centered title + subtitle; 'title-body' = heading + body text; 'two-col' = heading + two text columns (body fills the left, right starts empty); 'blank' = empty. Returns the new slide id and its e | Listed for discovery; the registry allows read-only calls only |
add_to_cart | Add a product to the shopper's cart by SKU (from search_products results). Returns the updated cart so you can confirm the running total. | Listed for discovery; the registry allows read-only calls only |
align_elements | Align elements to the slide or to their shared bounding box, and/or space them evenly along an axis (distribute needs 3+ elements; the first/last stay put). Same shape as align_selection. Returns the new positions. | Listed for discovery; the registry allows read-only calls only |
apply_preset | Apply a complete built-in preset, replacing theme tokens. Call get_theme_overview to list preset ids. | Listed for discovery; the registry allows read-only calls only |
apply_promo | Apply a promo code to the cart (e.g. TRAIL10, TRAILVIP, SUMMIT20). Returns whether it was accepted and the updated cart with the discount applied. | Listed for discovery; the registry allows read-only calls only |
apply_theme | Switch the deck's theme. Every element using theme tokens ('theme.accent', 'theme.heading', …) restyles across ALL slides. | Listed for discovery; the registry allows read-only calls only |
assign_color_role | Recolor a widget region by role, palette family, and intensity. | Listed for discovery; the registry allows read-only calls only |
check_contrast | Run WCAG checks over key text/background pairs. | Callable read-only tool |
configure_widget | Toggle launcher position, feature flags, and message layout. | Listed for discovery; the registry allows read-only calls only |
create_event | Create a calendar event and render it on the page. startDate/endDate are LOCAL wall-clock times in the calendar timezone, formatted YYYY-MM-DDTHH:mm: never append "Z" or a UTC offset (any offset is ignored and the stated clock time is used | Listed for discovery; the registry allows read-only calls only |
create_flint_chart | Run a read-only SQL query, compile the result through Microsoft's Flint visualization language, and open it in the analysis workspace. Use after validating the SQL with run_analytics_sql. | Callable read-only tool |
delete_elements | Permanently remove one or more elements by id. | Listed for discovery; the registry allows read-only calls only |
delete_event | Delete an event from the calendar by eventId. | Listed for discovery; the registry allows read-only calls only |
delete_slide | Permanently remove a slide and all its elements. | Listed for discovery; the registry allows read-only calls only |
describe_analytics_data | Return the browser-local analytics database schema, table sizes, sample rows, and SQL tips. Call this before the first query when the required columns are not already obvious. | Callable read-only tool |
duplicate_slide | Copy a slide (and all its elements) right after the original. Returns the new slide id. | Listed for discovery; the registry allows read-only calls only |
enter_presenter_mode | Enter full-screen presenter mode. NOTE: this replaces your editing tools with presentation controls (next_slide, prev_slide, jump_to_slide, exit_presenter_mode) until the show ends. | Callable read-only tool |
find_availability | Find open slots on a date, optionally for a single user. Workday is 9am-5pm local time. Returned slot times are local wall-clock times in the calendar timezone. | Callable read-only tool |
get_calendar_state | Read the current calendar state: current local date-time, selected date, visible week, timezone, total event count, visible events, and the valid users (with the userIds create_event accepts). Call this before creating or editing events. Al | Callable read-only tool |
get_deck_overview | Read the deck: title, active theme, slide count, and per-slide {id, position, title, elementCount}. Call this first to orient yourself; positions are 1-based. | Callable read-only tool |
get_events | List calendar events. Optionally filter by month in YYYY-MM format, userId, or a text search over title/description/location. | Callable read-only tool |
get_selection | Read the elements the user currently has selected on the canvas: ids, types, geometry, and styles. Use this whenever the user says 'this', 'these', or refers to something they clicked. | Callable read-only tool |
get_slide | Read one slide's full contents: every element with its id, geometry, and style. Call this before editing a slide's elements. Defaults to the slide open in the editor. | Callable read-only tool |
get_store_overview | Read the current admin dashboard: the KPI metrics (with 30-day change), the available admin sections and which is active, the product inventory (name, price, on-hand count and stock status), the recent-activity feed, and Otto's current dock | Callable read-only tool |
get_theme_overview | Read theme summary, presets, and editable levers. Call before editing. | Callable read-only tool |
goto_slide | Open a slide in the editor (navigation only: changes nothing). | Callable read-only tool |
list_themes | List the available deck themes with their palettes and fonts. | Callable read-only tool |
log_activity | Add an entry to the dashboard's Recent activity feed. Use a short title and put any detail in the body. | Listed for discovery; the registry allows read-only calls only |
manage_session | Undo, redo, reset defaults, or export the theme snapshot. | Listed for discovery; the registry allows read-only calls only |
remove_from_cart | Remove a product from the cart by SKU, or reduce its quantity. Omit quantity to remove the line entirely. Returns the updated cart. | Listed for discovery; the registry allows read-only calls only |
reorder_slides | Move a slide to a new 1-based position. Returns the resulting slide order. | Listed for discovery; the registry allows read-only calls only |
restock_product | Set a product's on-hand inventory. Pass the exact product name (from get_store_overview) and either `quantity` to ADD to the current count, or `set_to` to set an absolute count. The product's stock badge updates immediately (Sold out → Low | Listed for discovery; the registry allows read-only calls only |
restyle_copilot | Change Otto's own appearance — the same knobs as the Copilot settings card. All fields optional; omitted ones keep their current value. accent: 'violet' | 'ocean' | 'forest' | 'ember' (ocean is the blue one). radius: corner rounding in px, | Listed for discovery; the registry allows read-only calls only |
run_analytics_sql | Run one read-only SELECT query against the Northstar analytics database in the browser. Returns up to 500 result rows, column names, total row count, truncation status, and elapsed milliseconds. | Callable read-only tool |
screenshot_preview | Capture the current rendered state of the theme preview as an image: exactly what the user sees. Returns one JPEG per visible preview frame (two when a compare mode is active, labeled e.g. Light/Dark). Call after applying a batch of theme c | Callable read-only tool |
search_products | Search the product catalog by free-text query (e.g. 'waterproof trail shoe', 'blue running', 'jacket'). Returns matching products with SKU, title, brand, color, price, imageUrl, and imageAlt. | Callable read-only tool |
select_date | Move the calendar UI to a specific date without creating an event. | Listed for discovery; the registry allows read-only calls only |
set_brand_colors | Set primary, secondary, and/or accent colors. Generates shade scales and accepts hex, rgb/rgba, or CSS names. | Listed for discovery; the registry allows read-only calls only |
set_color_scheme | Set light/dark/auto color scheme and optional edit target. | Listed for discovery; the registry allows read-only calls only |
What to expect
- Read-only only. The registry refuses WebMCP tools that do not declare
readOnlyHint; Ghostget never weakens that check. - Untrusted results. Tool output is site content, not instructions — treat it as data.
- Live schemas.
sites.getalways returns the schema the registry saw most recently, so agents adapt when Persona changes its tools. - No account needed. These calls are credential-free registry reads. For tools that need a session on persona-chat.dev, browse the site itself or check back when the registry lists more tools.