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101 tools from Higgsfield MCP.

Animation actionsRead-only catalog of the 3D rig animation library (678 actions: locomotion, gestures, dancing, combat, daily actions). Search by name or browse by group/category to find the animation_action_id for 3D generation with enable_animation=true. Each result has a preview_url GIF — when several candidates fit (e.g. many Idle or Walk variants), show the user the previews as markdown images and let them pick instead of choosing blindly. Does not create jobs.
Apps describeGet an app's action contract: with `action`, the full input/output schema + execution mode for that one action; without it, a summary of every action. Also returns `manifest_revision`, which apps_invoke requires. Read-only.
Apps invokeRun one described action on a Marketplace app AS the current user. First call apps_describe(app_id, action) to get the exact `arguments` schema and the `manifest_revision`, then pass them here. Long-running actions return { id, status: "queued" }. If a widget is visible, it polls the status action automatically — do not re-invoke get_* as a follow-up poll. In text-only clients, poll by invoking the app's status action (e.g. get_render) until status is completed/failed. The action's own annotations (from apps_describe) indicate cost/side-effects; confirm with the user before an expensive or destructive action.
Apps searchSearch Higgsfield Marketplace apps callable through MCP. Returns each app's id, name, and the actions it exposes. Flow: apps_search to find an app → apps_describe(app_id, action) to get an action's argument schema + manifest_revision → apps_invoke to run it. Read-only; does not call any app.

Get workflow instructionsAd Multiplier — load workflow 'ad-multiplier' when the user asks to 'multiply my video', 'multiply my ad', create multiple independently edited versions of one supplied 4-30 second video, or regenerate the same ad with different people or products. Load this workflow before Marketing Studio, model browsing, or direct generation. Brand Asset Creation: for branded-asset work including logo recoloring/export, a branded PowerPoint/presentation deck, or analyzing an official brandbook to produce an asset, even when all inputs are supplied or no generation is needed, load 'brand-asset-creation' before sandbox_exec. Faceless video generation, AI-narrated video, narrated animated explainer video, narrated / personal / philosophical story video, YouTube/Instagram thumbnail or video cover, product photoshoot, packshot, studio or lifestyle product photography, product hero banner, product carousel, static product ad pack, virtual model product try-on, conceptual product still, or product-photo restyle, UGC-style ad for a website / SaaS / store / product page from its URL ('SaaS UGC'), any other UGC / creator-style short video for a product — a talking-head creator review (the default UGC ask), a product-only ad with no creator on camera, an unboxing / first-reaction / haul, a try-on / fit check / OOTD, a step-by-step tutorial with on-screen steps, a character sheet, character reference, model sheet, turnaround, expression sheet, or consistent multi-view character prompt, any branding work — a logo, visual identity, brand kit, brandbook, branded mockups, merchandise, packaging, signage, social graphics, posters, or banners ('brand-asset-creation'), including recoloring or exporting an existing official SVG/PNG logo even when no new design or image generation is requested, or building / editing a website, web app, landing page, or browser game with the website tools ('website-builder-flow'): before building ANY of these, use this tool to discover and load the bundled workflow (each a SKILL.md that orchestrates the generate_* tools). Call with NO argument to list available workflows and their triggers. Call with a workflow name to load that workflow's full SKILL.md plus the list of files readable via get_workflow_bundle_file.

Sandbox execExecute a shell command in a remote Higgsfield cloud Linux sandbox — NOT your local machine or the client's own shell. Whenever a task needs shell tooling (ffmpeg, image/file conversion, scripting), use this tool, never a built-in or local bash/shell tool: only this sandbox has the media toolchain preinstalled and can reach the user's Higgsfield media. Preinstalled: ffmpeg/ffprobe, ImageMagick, sox, python3 with Pillow and faster-whisper, node/npm/npx, sharp-cli, Playwright with headless Chromium, caption fonts (Metropolis, Montserrat), zip/unzip, git, curl, jq. Use it for media processing (trim, convert, overlay, concat with ffmpeg), image manipulation, file conversion, scripting, and packaging that dedicated tools don't cover. The sandbox is isolated per user and is discarded ~10 seconds after a call finishes, so files in /home/user only survive between back-to-back calls — chain multi-step work into a single command (&&) and export results before finishing, or expect to re-download inputs. It has internet access: bring files in with curl from media URLs (media_import_url or generation results). For an output created here, call media_upload BEFORE starting the producing command, then append `curl -f -X PUT --upload-file <file> '<upload_url>'` to that SAME command so the ephemeral file is uploaded before it exits; call media_confirm only after HTTP 200. Never pass a sandbox path to media_upload_and_confirm: that tool accepts only client attachments. Commands run in /home/user and time out after timeout_seconds (default 60, max 120); for longer work (large renders, installs) set background:true and poll the returned log/status files with later sandbox_exec calls. Background work receives a 15-minute sandbox lease, and shorter poll calls never reduce its remaining lifetime. Set restart:true to discard the sandbox and start clean. Workflow bundle scripts are already installed in every sandbox under $HF_WORKFLOWS (/home/user/.higgsfield/workflows), laid out as $HF_WORKFLOWS/<workflow>/scripts/... — run them straight from there (they survive restart:true), and never paste script contents into the command.

Scene builder 3d run pythonCommit one coherent Blender scene edit against the exact revision and scene sequence you inspected with `scene_builder_3d_get_project` or `scene_builder_3d_query_python`. `bpy` and `artifacts` are available; assign JSON-serializable findings to `result`. Keep one mutation active per project, including imports. If this operation remains active, poll `scene_builder_3d_get_operation` before editing again. Reuse `operationId` only for the identical code and preconditions. On a stale-state conflict, inspect the scene again and regenerate the edit with fresh guards and a new operation ID. A successful mutation advances `revisionAfter`. Build editable scenes at metre scale with descriptive object names and semantic parts. For a new multi-object scene, establish the delivery camera, a motivated key light, fill, and ambient light with the first blockout. Preserve existing scene intent when editing. Work through silhouette, measured proportions, depth, contact, camera framing, then detail; adjust lights with the geometry. Keep modifiers and material roles editable, account for parent transforms, and prefer shared mesh data over large loops of creation operators. Use portable Principled materials and existing embedded textures when GLB delivery matters; procedural shaders and world lighting do not reliably carry into GLB. Use Point, Sun, or Spot lights for portable lighting. Do not invent texture paths or fetch external files from Blender. This worker pins Blender 5.2. Use `BLENDER_EEVEE`, `BLENDER_WORKBENCH`, or `CYCLES`, not `BLENDER_EEVEE_NEXT`. Query RNA instead of assuming older APIs such as `use_bloom`, `use_auto_smooth`, or render tile settings exist. Code is capped at 256 KiB, and execution and checkpoint/export must fit the configured worker deadline. Keep renders small and samples low; split expensive work into coherent edits. Committed scenes are finalized with Eevee and Khronos PBR Neutral. For animation, establish fps, frame range, rest pose, and timing first; key only intended properties, choose interpolation deliberately, and inspect rest, peak, final pose, contacts, and loop seams. Avoid promising long video renders before validating cost. Successful execution does not establish visual correctness. Render from the delivery camera, publish the image through `artifacts`, then retrieve it with `scene_builder_3d_get_artifact` and inspect it using the client's image capability. Fix framing, floating/intersecting parts, missing textures, and lighting before claiming completion. Workbench does not test scene lights; use a small Eevee render for that. If visual inspection is unavailable, state what remains unverified. Use `scene_builder_3d_import_asset` for models and `scene_builder_3d_get_glb` or `scene_builder_3d_get_blend` when the user needs the committed files. Finish each completed scene creation, edit, or import task by calling `scene_builder_3d_show_scene` once as the final 3D Jutsu tool call before your final reply, after mutations have settled and verification is complete. Pass the same `projectId` and the exact committed `revision` of the final result: `revisionAfter` from the final successful mutation, or the settled `project.revision` after an import. Do not guess the revision. This shows the result to the user; a text summary or download link alone does not finish scene delivery.

Show plans and creditsOpen the single combined pricing widget for everything billing-related. The widget has two tabs the user can switch between: **Upgrade Plan** (Plus + Ultra, monthly + annual subscription cards) and **Top-up Credits** (one-time credit packs of 500 / 1,000 / 2,000 / 4,000 credits). Cards include feature lists, 7-Day Unlimited highlights, and 365-Day Unlimited blocks pulled from the live pricing config. Each plan card and credit pack has a CTA that links directly to the relevant Stripe or Higgsfield checkout/setup URL — no separate tool is needed to mint checkouts. For every billing request, the text response and `assistant_response` are intentionally short, user-facing sales copy with checkout URLs wrapped as action-specific Markdown links such as `[Go to Checkout](url)`, `[Higgsfield Upgrade](url)`, `[Higgsfield Credit Top-up](url)`, `[Higgsfield Auto-refill](url)`, `[Higgsfield Team Top-up](url)`, or `[Higgsfield Team Auto-refill](url)`; relay that response verbatim instead of summarizing, saying only that the widget opened, or listing options without links. If the user asks to buy credits or they are out of credits, first push auto-refill when `auto_refill_purchase_link` is present, then show `credit_purchase_links`. If the user asks to upgrade or a minimum plan is required, show `plan_purchase_links`. Pass `intent='auto_refill'` for out-of-credits recovery, `intent='topup'` for one-time credit packs, `intent='upgrade'` for plan upgrades, or `intent='trial'` when the user specifically asks for the free trial so the response is ordered for that purchase path. FREE TRIAL: when `free_trial` is present in the response, the user is eligible for a 3-day $0 Plus trial with MCP-only credits — the widget shows it and the text response leads with it. In text-only clients ALWAYS relay `free_trial.compliance_note` verbatim (MCP-only, card required, automatic charge after the trial unless cancelled, how to cancel by saying 'cancel auto-renewal'). When `free_trial` is absent, NEVER speculate about trial eligibility or mention fraud/abuse checks — present the paid plans neutrally. When `initial_view='trial_upgrade'`, the user's trial credits are exhausted: relay the numbered upgrade options plus the renewal reminder, and mention that saying 'cancel auto-renewal' stops the upcoming charge while keeping trial access. To cancel the trial's auto-renewal, call `cancel_trial_auto_renewal` instead of this tool. Use this tool for ANY of these requests: plans, pricing, subscriptions, upgrade options, comparing tiers, buying credits, topping up credits, refilling credits, credit packs. Do not look for separate `show_plans` or `show_credit_topups` tools — both have been merged into this one. Returns `already_subscribed: true` when the workspace is already on a paid plan; the widget hides the Upgrade tab in that case and shows only credit top-ups. Team-plan workspaces: `workspace_kind` field indicates the context. When `workspace_kind='team_owner'`, the widget renders team-specific Top-up and Auto-refill UIs and emits `team_purchase_links` (two links: `team_top_up` and `team_auto_refill`) that deeplink to the team billing modals on higgsfield.ai — relay both Markdown links in the text response. When `workspace_kind='team_member'`, no purchase links are returned; the widget shows a read-only notice and the text response tells the user only the workspace owner can buy credits or change auto-refill. Do not invent purchase links for members.

Show reference elementsElements widget — reusable characters / environments / props per workspace. Actions: - `list` (default; paginated by `created_at` DESC, use `cursor` from prev `next_cursor`). - `get` (default when `element_id` is set). - `create`: pass `medias[]` as `{ id, url, type: 'media_input' | 'image_job' }`. Upload first via media_upload → PUT bytes → media_confirm. `category='auto'` lets the server classify (use explicit only on user ask). Omit `name` to auto-derive (per-workspace unique, collisions get a numeric suffix). Returns synchronously. AMBIGUITY GUARD vs Soul — user wants a reusable face of one specific person (digital twin / 'my avatar' / identity) without a chosen path: do NOT silently create; ask: 1. Element (this tool action=create) — instant, single image, MULTIPLE references per generation, works with Nano Banana Pro / 2, GPT Image 2, Seedream 4.5 / 5 lite, Cinema Studio Image 2.5, Cinema Studio Video 2 / 3.0, Seedance 2.0, Kling 3.0. NOT for Soul V2 / Cinema. 2. Soul (`show_characters` action=train) — 5-20 photos, ~10 min, ONE person, Soul V2 / Cinema only. Skip the question → Elements on: >1 character/subject in one shot (Soul can't), non-person subject, single image, mention of Nano Banana / Seedream / Kling / Cinema Studio, instant result. Skip → Soul on: 'train' / 'digital twin' / 'identity', or 5+ photos of one person for solo outputs. USAGE IN GENERATION (internal — never explain to user): Embed `<<<element_id>>>` inside `params.prompt` of `generate_image` / `generate_video`. Backend auto-injects the image and rewrites to `@element_name`. Multiple placeholders per prompt OK. Example: `"Cinematic portrait of <<<UUID>>> on a rooftop"`, `"<<<A>>> handing coffee to <<<B>>> in a Paris cafe"`. SUPPORTED MODELS (`params.model` = machine name, friendly in parens): - Image: `nano_banana_pro` (Nano Banana Pro), `nano_banana_2` (Nano Banana 2), `gpt_image_2` (GPT Image 2), `seedream_v4_5` (Seedream 4.5), `seedream_v5_lite` (Seedream 5.0 lite), `cinematic_studio_2_5` (Cinema Studio Image 2.5). - Video: `cinematic_studio_video_v2` (Cinema Studio Video 2), `cinematic_studio_3_0` (Cinema Studio Video 3.0), `seedance_2_0` (Seedance 2.0), `kling3_0` (Kling 3.0 — REQUIRES a `start_image` in `params.medias`; element placeholder alone won't trigger reference usage). Map friendly→machine silently. Other models silently ignore the placeholder. USER-FACING STYLE: use friendly model names only; never expose machine names, `<<<UUID>>>` syntax, `params.model` / `params.prompt`, `generate_image` / `generate_video`, or 'job_set_type'. Reference elements by `name`, never id. GUARDS: - `@name` form does NOT work in tool calls — only `<<<UUID>>>` in `params.prompt`. - Do NOT put element ids in `params.medias` / `params.input_images` — placeholder handles injection. - `kling3_0` only honors reference elements when an explicit `start_image` is provided in `params.medias`. If the user wants Kling 3.0 with an element but hasn't supplied a start frame, ask for one (upload via media_upload → PUT bytes → media_confirm, or pick a prior generation) before calling `generate_video`. Without a start_image, pick another video model from the list. - Only `status: completed` elements are usable; skip `processing` / `ip_checking` / `failed` / `kling_failed` / `nsfw`.

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