InjectShield
Prompt-injection firewall for AI agents that scans untrusted text before LLM calls.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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bch1212
Source: PulseMCP · also listed on Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening
Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)
hono: CORS Middleware reflects any Origin with credentials when `origin` defaults to the wildcard
Hono JWT Middleware's JWT Algorithm Confusion via Unsafe Default (HS256) Allows Token Forgery and Auth Bypass
ADMIN_EMAILADMIN_TOKENALERT_THRESHOLDANTHROPIC_API_KEYAPI_BASE_URLDISCORD_WEBHOOK_URLENVIRONMENTGITHUB_CLASSIC_PATINJECTSHIELD_API_BASEINJECTSHIELD_API_KEYclaude mcp add injectshield --env =is_live_… -- npx -y @injectshield/mcpINJECTSHIELD_TESTPUBLIC_BASE_URLSENDGRID_API_KEYSIGNUP_FROM_EMAILSIGNUP_FROM_NAMESTRIPE_PRICE_HOBBYSTRIPE_PRICE_PROSTRIPE_PRICE_TEAMSTRIPE_SECRET_KEYSTRIPE_TEST_SECRET_KEYSTRIPE_WEBHOOK_SECRETPORTTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
3/3 tools missing one or more hints — scan (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); scan_url (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); patterns (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool test coverage
1/3 tools referenced in tests (33%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
1 child_process call — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Secrets stay with their owner
2 secret/sensitive values flow into network calls (API_BASE_URL → dynamic, API_BASE_URL → api.stripe.com) (3 other flows matched canonical API hosts)
Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.
Secrets not written to files
1 secret value written to files
Avoid persisting secrets to disk. Keep them in memory or your secret manager.
Secrets not logged
5 secret values sent to console.log
Redact or omit secret values from log output.
Production dependencies are patched
0 critical, 5 high severity in production deps — hono@4.4.7 (high), hono@4.4.7 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Dev dependencies
2 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
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