Index / devtools

io.github.closermethod/newsletter-growth-mcp

io-github-closermethod-newsletter-growth-mcp declares 6 capabilities across 6 tools, with 2 critical issues.

22/100 exposureModerate

Manifest recorded 2026-10-15 from tools/list answered by the npm package newsletter-growth-mcp@1.0.1 (published to npm as newsletter-growth-mcp, listed in the official MCP registry as io.github.closermethod/newsletter-growth-mcp 1.0.1), run in an isolated container with no network access and no credentials. 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 6 tools

6 of 6 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.

critical · irreversible-uncapped · 1 of 6 tools

1 tool is classified as irreversible and declares no limit.

high · no-expiry · All 6 tools

6 of 6 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 6 tools

6 of 6 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 · 5 of 6 tools

5 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
`get_growth_loop`	`read`	inferred
`get_welcome_sequence`	`read`	inferred
`audit_subject_line`	`send`	inferred
`interpret_list_metric`	`read`	inferred
`get_monetization_readiness`	`read`	inferred
`get_full_pack`	`read`	inferred

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