io.github.Travisswop/swop

What we checked

Six static checks, weighted by risk. Every result reflects only what could be observed in the published package and repository — never intent.

• Injection surface

  warn25% of grade

  Tool descriptions/manifest scanned for instruction-injection patterns (imperatives at the model, hidden text, 'ignore previous', data-exfil URLs).

  tool "swop_send" description: cross-tool redirection ('instead of call…').

• Supply chain

  pass25% of grade

  Package provenance: namespace verification, repo linkage, maintainer count, account age, postinstall scripts, typosquat distance.

  repository linkage verified

• Credential hygiene

  fail15% of grade

  How the server takes secrets (env vs plaintext config vs hardcoded); secrets appearing in tool schemas.

  tool "swop_get_orderbook" has a secret-shaped input parameter "tokenId" — secrets must never be tool parameters (the model would supply/handle the credential). tool "swop_get_prices" has a secret-shaped input parameter "tokenIds" — secrets must never be tool parameters (the model would supply/handle the credential). tool "swop_get_price_history" has a secret-shaped input parameter "tokenId" — secrets must never be tool parameters (the model would supply/handle the credential).

• Permission scope

  pass15% of grade

  Declared tools vs. breadth (filesystem, network, exec); flags shell-exec and unbounded filesystem access.

  No shell-exec, unbounded/sensitive filesystem, or download-and-run primitives found in scanned source. PASS = no static red flag. Static scanning is blind to code fetched or executed at runtime.

• Version behavior

  fail10% of grade

  Diff of tool definitions between versions; new permissions or changed descriptions in a patch release (the postmark-mcp class).

  vs prior 0.1.0 (patch bump): tool "swop_get_store" description changed (wording only, no injection pattern); new tool "swop_get_my_profile" touches a sensitive surface (email/exec/net/fs); new tool "swop_get_my_balances" appeared; new tool "swop_get_my_orders" appeared; new tool "swop_update_my_smartsite" appeared; new tool "swop_create_product" appeared; new tool "swop_get_spending_delegation" touches a sensitive surface (email/exec/net/fs); new tool "swop_send" touches a sensitive surface (email/exec/net/fs); new tool "swop_pay_x402_link" touches a sensitive surface (email/exec/net/fs); new tool "swop_get_swap_quote" touches a sensitive surface (email/exec/net/fs).

• Transport config

  pass10% of grade

  Remote servers: TLS and auth mode (none/token/OAuth). Local servers: whether the manifest indicates it phones home.

  remote endpoint "https://mcp.swopme.co/mcp" uses TLS (https); remote endpoint uses OAuth (strongest auth mode)