com.gumballtools/platform

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 "cron_explain" description: off-vendor URL in a description (crontoenglish.com,); capability text should not name where data goes. tool "cron_build" description: off-vendor URL in a description (crontoenglish.com,); capability text should not name where data goes. tool "json_to_types" description: off-vendor URL in a description (json-to-types.gumballtools.com,); capability text should not name where data goes. tool "regex_explain" description: off-vendor URL in a description (regex-explainer.gumballtools.com,); capability text should not name where data goes. tool "timezone_convert" description: off-vendor URL in a description (timezone-truth.gumballtools.com,); capability text should not name where data goes. tool "color_analyse" description: off-vendor URL in a description (color-companion.gumballtools.com,); capability text should not name where data goes. tool "vocab_draw" description: off-vendor URL in a description (words-in-context.gumballtools.com,); capability text should not name where data goes. tool "vocab_check" description: off-vendor URL in a description (words-in-context.gumballtools.com,); capability text should not name where data goes. tool "body_metrics" description: off-vendor URL in a description (body-metrics.gumballtools.com,); capability text should not name where data goes. tool "due_date" description: off-vendor URL in a description (due-date.gumballtools.com,); capability text should not name where data goes. tool "round_cash_total" description: off-vendor URL in a description (penny-rounding.gumballtools.com,); capability text should not name where data goes. tool "rounding_impact" description: off-vendor URL in a description (penny-rounding.gumballtools.com,); capability text should not name where data goes. tool "offside" description: off-vendor URL in a description (sports-rules.gumballtools.com,); capability text should not name where data goes. tool "check_digit_run" description: off-vendor URL in a description (check-digit.gumballtools.com,); capability text should not name where data goes. tool "amortize_schedule" description: off-vendor URL in a description (amortize.gumballtools.com,); capability text should not name where data goes. tool "equation_steps_run" description: off-vendor URL in a description (equation-steps.gumballtools.com,); capability text should not name where data goes.

• Supply chain

  pass25% of grade

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

  repository linkage verified

• Credential hygiene

  pass15% of grade

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

  No hardcoded secrets, secret-shaped tool parameters, or leaked keys found. PASS = no static red flag; static analysis cannot prove the code honors env-based secret handling at runtime.

• Permission scope

  unscannable15% of grade

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

  No source files, package.json, or pyproject were fetched; cannot infer capability scope.

• Version behavior

  unscannable10% of grade

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

  no prior version to diff (first sight of com.gumballtools/[email protected]); version-drift / rug-pull cannot be evaluated. Cold-start risk is covered by point-in-time checks (injection_surface, supply_chain, credential_hygiene), not here.

• Transport config

  fail10% of grade

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

  remote MCP endpoint declares NO authentication (unauthenticated remote — nginx-ui/CVE-2026-33032 class)