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Perufitlife/postwire-mcp (postwire-mcp)

postwire-mcp · v0.3.0 · scanned

What changed in the harness

Selection accuracy 96→96, token cost up 6%, unconfirmed writes 0%→0%.

Category breakdown

Where the score comes from.

Earned points across the four signals Gradable measures. Safety and Legibility are scored out of 30; Economics and Discoverability are scored out of 20.

01Safety

0.0 / 30

0.0 out of 30
02Legibility

28.0 / 30

28.0 out of 30
03Economics

20.0 / 20

20.0 out of 20
04Discoverability

11.4 / 20

11.4 out of 20

Highest-impact fix

Estimated gain +30 points

Add explicit identity and permission preflight tools

Expose machine-readable principal/tenant confirmation and a non-mutating permission check so agents can verify both before destructive actions.

Description evidence

Defects and rewrites.

3 defects found across the exposed tool descriptions. Suggested rewrites make purpose, inputs, boundaries, and returns easier for an agent to understand.

Tool Defect types Suggested rewrite
get_post_status
no_return_description
Checks the processing/publish status of a post previously created with post_to_social, identified by platform and post id. Returns the current status (e.g. pending, processing, published, failed) and any platform-specific result details such as a published URL.
list_platforms
no_return_description
Lists the social platforms PostWire supports. Returns an array of platform objects, each including the platform name and the fields required or optional for posting to it (e.g. text, title, media_url).
my_account
no_return_description
Retrieves the current PostWire account details. Returns the subscription plan, current monthly usage/quota, and the list of connected social platforms.

Selection evidence

Confusable tool pairs.

3 pairs where similar names or overlapping descriptions may send an agent toward the wrong tool.

Tool A Tool B Confidence Why they collide
generate_posts post_to_social medium A task like 'post about our new product launch to X and LinkedIn' could be satisfied by either drafting content (generate_posts) or immediately publishing (post_to_social) with an inline text/per_platform, especially if the agent skips the recommended two-step flow and picks whichever tool sounds like it 'creates the post'.
generate_posts get_post_status low Both relate to 'posts' but their purposes (drafting content vs checking publish status) are distinct enough that a natural-language request would rarely map ambiguously to both.
post_to_social get_post_status low A phrase like 'check on my social post' clearly maps to status checking, and 'publish/post' maps to post_to_social; little genuine overlap despite shared vocabulary.

Compare the field

One score is useful.
The evidence makes it actionable.

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