Ten MCP server

by johnbeans·io.github.johnbeans/ten·v0.1.0

Ten formal algebra for machine intelligence — encode, decode, compose, and verify

B75/100grade B

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Safety scan

B75/100

Adoption

New

0 stars13 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

ten_compose
Compose two Ten expressions using an algebraic operation.
ten_decode
Decode Ten binary wire format back into a structured expression.
ten_describe
Return a human-readable description and structural analysis of a Ten expression. Useful for debugging and understanding message contents.
ten_encode
Encode a structured expression into Ten binary wire format.
ten_filter
Filter a list of expressions by facet criteria. This is the inbox processing hot path — filter 1000 messages by urgency >= 0.8 without parsing message bodies.
ten_project
Extract a subset of facet dimensions from an expression (like SELECT columns).
ten_verify
Verify the structural integrity of a Ten expression. Checks that the expression tree is well-formed: all compositions have valid children, assertions have claims and identities, operations have valid args, etc.

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings

Code scan5 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitylocal package, no credentials required12/15
Maintenancelast push 182 days ago4/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Overall 75/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score: 75/100; higher than 45% of 48,255 servers
Tools: 7; the typical server has 7
Tools that change things: 0%; typical: 0%. Fewer write tools means less an agent can break
Downloads a week: 13; more than 4% of 12,191 servers with a package

What its tools let an agent do: 7 read

claude mcp add ten -- uvx ten-mcp-server

Is Ten MCP server safe?: Mostly: it is graded B (75/100). Read the Ten safety report
How do I install Ten?: It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Ten need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Ten maintained?: The last commit was 219 days ago (2026-03-30). The latest release is v0.1.0.
How does Ten compare with other MCP servers?: safety score 75/100 (higher than 45% of 48,255 servers); tools 7 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.