Forecall
Failure recordsDocs
All scored servers

Siren: tool descriptions scored ai.mysiren/siren

tools/list taken
(UTC)
From
Official MCP Registry
Connected to
https://mcp.mysiren.ai/mcp
Repository
github.com/Hexahedral-Inc/siren-mcp
Scoring rules
v2
Removal
support@forecall.dev
Score this URL as it is today

Scores, issues and names only

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.

servers/ai.mysiren/siren
Average score
63.1 / 100Cloudy
Tools
59
Near-identical descriptions
0

Across the server

  • Major
    59 tools. Above 40, models choose less accurately.too_many_tools

Tools

delete_brand_video

48 / 100Cloudy

Purpose
13 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    String arguments with no constraint or example: video_id.loose_string_param
  • 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.id_source_missing

delete_person

48 / 100Cloudy

Purpose
13 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    The description is too short (7 words).too_short
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    String arguments with no constraint or example: person_id.loose_string_param
  • 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.id_source_missing

studio_get

49 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    String arguments with no constraint or example: thread_id.loose_string_param
  • 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.id_source_missing

studio_schedule

50 / 100Cloudy

Purpose
13 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

upload_logo

50 / 100Cloudy

Purpose
13 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description

get_performance

51 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required

list_posts

51 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required

delete_media

52 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

delete_product_screen

52 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • 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.id_source_missing

get_mascot

54 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

list_ad_campaigns

54 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

list_media

54 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

list_people

54 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

list_runs

54 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required

set_ad_budget

54 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    String arguments with no constraint or example: campaign_id.loose_string_param
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description
  • 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.id_source_missing

studio_threads

54 / 100Cloudy

Purpose
14 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

send_ads_to_platform

55 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • 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.id_source_missing

decide_ad_suggestion

57 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description
  • 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.id_source_missing

get_ad_campaign

57 / 100Cloudy

Purpose
17 / 20
When to use
5 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • 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.id_source_missing

plan_ads

57 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

studio_templates

57 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

update_product_screen

57 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • 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.id_source_missing

add_person

59 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description

list_brand_videos

59 / 100Cloudy

Purpose
14 / 20
When to use
5 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10

No issues.

pause_ad_campaign

59 / 100Cloudy

Purpose
17 / 20
When to use
5 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • 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.id_source_missing

buy_credits

60 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required

create_mascot

60 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required

list_ad_suggestions

60 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

list_product_screens

60 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

studio_design_pack

60 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • 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.id_source_missing

ads_overview

62 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

describe_film

62 / 100Cloudy

Purpose
17 / 20
When to use
5 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10

No issues.

studio_start

62 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
15 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description

ad_performance

64 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
15 / 15
Constraints and side effects
10 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required

mascot_step

64 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
24 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description

upload_media

64 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
15 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required

ad_account_balance

65 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

make_ads

65 / 100Cloudy

Purpose
17 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

studio_edit

65 / 100Cloudy

Purpose
17 / 20
When to use
5 / 20
Arguments
20 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
5 / 10
  • Minor
    The description mentions none of its 3 or more arguments.params_not_in_description
  • 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.id_source_missing

get_ad_caps

67 / 100Cloudy

Purpose
17 / 20
When to use
10 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
0 / 10

No issues.

studio_automate

67 / 100Cloudy

Purpose
20 / 20
When to use
5 / 20
Arguments
20 / 25
Return value
15 / 15
Constraints and side effects
7 / 10
Examples
0 / 10

No issues.

upload_product_screen

67 / 100Cloudy

Purpose
20 / 20
When to use
0 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
10 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    No `required` list, so every argument is optional.no_required

get_account

68 / 100Cloudy

Purpose
20 / 20
When to use
5 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
0 / 10

No issues.

get_brand_dna

70 / 100Clear

Purpose
20 / 20
When to use
5 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10

No issues.

studio_export

70 / 100Clear

Purpose
20 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
15 / 15
Constraints and side effects
10 / 10
Examples
5 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • Minor
    String arguments with no constraint or example: thread_id.loose_string_param
  • 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.id_source_missing

update_brand_dna

70 / 100Clear

Purpose
20 / 20
When to use
0 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
10 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context

clarify_brief

72 / 100Clear

Purpose
20 / 20
When to use
5 / 20
Arguments
20 / 25
Return value
15 / 15
Constraints and side effects
7 / 10
Examples
5 / 10

No issues.

upload_brand_video

72 / 100Clear

Purpose
20 / 20
When to use
5 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
10 / 10
  • Minor
    No `required` list, so every argument is optional.no_required

go_live_ad_campaign

74 / 100Clear

Purpose
17 / 20
When to use
15 / 20
Arguments
20 / 25
Return value
15 / 15
Constraints and side effects
7 / 10
Examples
0 / 10
  • Minor
    String arguments with no constraint or example: campaign_id.loose_string_param
  • 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.id_source_missing

edit_asset

75 / 100Clear

Purpose
20 / 20
When to use
0 / 20
Arguments
20 / 25
Return value
15 / 15
Constraints and side effects
10 / 10
Examples
10 / 10
  • Major
    Says nothing about when to use it, or when not to.no_usage_context
  • 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.id_source_missing

list_platinum_films

75 / 100Clear

Purpose
17 / 20
When to use
10 / 20
Arguments
25 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
5 / 10

No issues.

get_run

77 / 100Clear

Purpose
20 / 20
When to use
10 / 20
Arguments
20 / 25
Return value
15 / 15
Constraints and side effects
7 / 10
Examples
5 / 10
  • Major
    The name is made of generic words only.generic_name

list_films

77 / 100Clear

Purpose
17 / 20
When to use
15 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
5 / 10
  • Minor
    No `required` list, so every argument is optional.no_required

studio_card

79 / 100Clear

Purpose
20 / 20
When to use
10 / 20
Arguments
22 / 25
Return value
15 / 15
Constraints and side effects
7 / 10
Examples
5 / 10

No issues.

schedule_post

82 / 100Clear

Purpose
20 / 20
When to use
20 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
5 / 10

No issues.

list_styles

84 / 100Clear

Purpose
17 / 20
When to use
20 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
7 / 10
Examples
10 / 10
  • Minor
    No `required` list, so every argument is optional.no_required

post_run

85 / 100Clear

Purpose
20 / 20
When to use
20 / 20
Arguments
22 / 25
Return value
8 / 15
Constraints and side effects
10 / 10
Examples
5 / 10

No issues.

render_asset

87 / 100Clear

Purpose
20 / 20
When to use
15 / 20
Arguments
25 / 25
Return value
15 / 15
Constraints and side effects
7 / 10
Examples
5 / 10

No issues.

create_campaign

88 / 100Clear

Purpose
20 / 20
When to use
10 / 20
Arguments
23 / 25
Return value
15 / 15
Constraints and side effects
10 / 10
Examples
10 / 10

No issues.

What static scoring cannot tell

This score reads only the text of each description and schema: it says what is written, not what a model will do. Short tools whose names already say what they do, such as browser_close, score low here even when models use them well, and in our measurements current models chose the right tool in one step even from one-line descriptions, as long as the names and schemas differed. What the text cannot show, such as what happens over several steps and whether an added sentence helps or misleads, is what an evaluation measures, on the Pro and Team plans.

Is your server listed here and you would rather it were not? Email support@forecall.dev, and we will take it off within 7 days.

All scored servers