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io.github.cyanheads/astronomy-mcp-server

io-github-cyanheads-astronomy-mcp-server declares 7 capabilities across 7 tools, with 1 critical issue.

12/100 exposureLow exposure

Manifest recorded 2026-10-16 from tools/list on https://astronomy.caseyjhand.com/mcp, published in the official MCP registry as io.github.cyanheads/astronomy-mcp-server 0.4.2. The date changes only when the manifest does. Not verified by a maintainer.

Issues

These describe what this server's manifest declares. A product can provide controls that MCP has no way to express — token revocation, an admin console, audit logs — and this page cannot see them. The absence of a declaration is not evidence that a control is absent.

critical · no-revocation · All 7 tools

7 of 7 tools declare no way for the customer to switch them off once granted. This applies to every tool because MCP has no field in which to declare a revocation mechanism; the product may provide one outside MCP that a manifest cannot show.

high · no-expiry · All 7 tools

7 of 7 tools declare no expiry. This applies to every tool because MCP has no field in which to declare an expiry; the product may provide one outside MCP that a manifest cannot show.

high · no-audit-trail · All 7 tools

7 of 7 tools declare no record of their actions that the customer can read. This applies to every tool because MCP has no field in which to declare an audit requirement; the product may provide one outside MCP that a manifest cannot show.

low · uncapped-read · All 7 tools

7 tools can read data and declare no limit.

Declared capabilities

How each tool was read. declared means the server's own annotation said so — self-reported and unverified. inferred is from the tool's name. assumed means nothing indicated either way.

Tool	Read as	Basis
`astronomy_get_sky_position`	`read`	declared
`astronomy_get_rise_set`	`read`	declared
`astronomy_get_moon_phase`	`read`	declared
`astronomy_find_events`	`read`	declared
`astronomy_list_visible`	`read`	declared
`astronomy_get_ephemeris`	`read`	declared
`astronomy_get_satellite_passes`	`read`	declared

Record history

Earlier records for this server. A correction is added here, never written over the record it corrects.

Recorded	Exposure	Source
2026-10-11	12	tools/list on https://astronomy.caseyjhand.com/mcp, published in the official MCP registry as io.github.cyanheads/astronomy-mcp-server 0.4.1

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