# Siren (ai.mysiren/siren): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/ai.mysiren%2Fsiren/versions/latest)
- Connected to: https://mcp.mysiren.ai/mcp
- Repository: https://github.com/Hexahedral-Inc/siren-mcp
- Scoring rules: v2
- Tools: 59
- Average: 63.1 / 100 (Cloudy)
- Near-identical pairs: 0

This page shows how Siren (ai.mysiren/siren)'s tool descriptions scored, the issues found and the names of its tools and parameters. The descriptions are the server's own: read them where the copy came from.

Forecall asked the URL this server lists in the official MCP Registry for its tools/list once, on the date above, without calling any tool. The server may have changed since.

## Across the server

- Major: 59 tools. Above 40, models choose less accurately.

## Tools

- `delete_brand_video`: 48 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: video_id.
  - Minor: Required identifiers whose description does not say where the value comes from: video_id. Name the tool or the place that returns it, or models look it up first.
- `delete_person`: 48 / 100
  - Major: The description is too short (7 words).
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: person_id.
  - Minor: Required identifiers whose description does not say where the value comes from: person_id. Name the tool or the place that returns it, or models look it up first.
- `studio_get`: 49 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: thread_id.
  - Minor: Required identifiers whose description does not say where the value comes from: thread_id. Name the tool or the place that returns it, or models look it up first.
- `studio_schedule`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
- `upload_logo`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: The description mentions none of its 3 or more arguments.
- `get_performance`: 51 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `list_posts`: 51 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `delete_media`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
- `delete_product_screen`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: screen_id. Name the tool or the place that returns it, or models look it up first.
- `get_mascot`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
- `list_ad_campaigns`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
- `list_media`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
- `list_people`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
- `list_runs`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `set_ad_budget`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: campaign_id.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Required identifiers whose description does not say where the value comes from: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `studio_threads`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
- `send_ads_to_platform`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `decide_ad_suggestion`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Required identifiers whose description does not say where the value comes from: suggestion_id. Name the tool or the place that returns it, or models look it up first.
- `get_ad_campaign`: 57 / 100
  - Minor: Required identifiers whose description does not say where the value comes from: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `plan_ads`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
- `studio_templates`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
- `update_product_screen`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: screen_id. Name the tool or the place that returns it, or models look it up first.
- `add_person`: 59 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: The description mentions none of its 3 or more arguments.
- `list_brand_videos`: 59 / 100
- `pause_ad_campaign`: 59 / 100
  - Minor: Required identifiers whose description does not say where the value comes from: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `buy_credits`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `create_mascot`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `list_ad_suggestions`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
- `list_product_screens`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
- `studio_design_pack`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: thread_id. Name the tool or the place that returns it, or models look it up first.
- `ads_overview`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
- `describe_film`: 62 / 100
- `studio_start`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `ad_performance`: 64 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `mascot_step`: 64 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `upload_media`: 64 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `ad_account_balance`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
- `make_ads`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
- `studio_edit`: 65 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Required identifiers whose description does not say where the value comes from: thread_id. Name the tool or the place that returns it, or models look it up first.
- `get_ad_caps`: 67 / 100
- `studio_automate`: 67 / 100
- `upload_product_screen`: 67 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `get_account`: 68 / 100
- `get_brand_dna`: 70 / 100
- `studio_export`: 70 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: thread_id.
  - Minor: Required identifiers whose description does not say where the value comes from: thread_id. Name the tool or the place that returns it, or models look it up first.
- `update_brand_dna`: 70 / 100
  - Major: Says nothing about when to use it, or when not to.
- `clarify_brief`: 72 / 100
- `upload_brand_video`: 72 / 100
  - Minor: No `required` list, so every argument is optional.
- `go_live_ad_campaign`: 74 / 100
  - Minor: String arguments with no constraint or example: campaign_id.
  - Minor: Required identifiers whose description does not say where the value comes from: campaign_id. Name the tool or the place that returns it, or models look it up first.
- `edit_asset`: 75 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: run_id. Name the tool or the place that returns it, or models look it up first.
- `list_platinum_films`: 75 / 100
- `get_run`: 77 / 100
  - Major: The name is made of generic words only.
- `list_films`: 77 / 100
  - Minor: No `required` list, so every argument is optional.
- `studio_card`: 79 / 100
- `schedule_post`: 82 / 100
- `list_styles`: 84 / 100
  - Minor: No `required` list, so every argument is optional.
- `post_run`: 85 / 100
- `render_asset`: 87 / 100
- `create_campaign`: 88 / 100

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