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Author SHA1 Message Date
Adam Moussa
c5b7550eaa Harden auth + finance redaction (sh-security-review confirmed mediums) 
Two confirmed medium findings from the agentic security review:

- Fail-open SH_MCP_ENV: config defaulted to 'local' when the var was unset,
  so a deploy that forgot SH_MCP_ENV=aws would silently run LocalAuthProvider
  and accept static dev bearer tokens (dev-finance-admin -> finance:admin).
  Now fail-closed: SH_MCP_ENV must be explicitly 'local' or 'aws' or the
  server refuses to start. Plus an independent guard in LocalAuthProvider
  that refuses to construct in an AWS runtime (AWS_LAMBDA_FUNCTION_NAME /
  AWS_EXECUTION_ENV present), regardless of the env flag.

- Finance egress redaction gap: redactDeep only wholesale-masked a sensitive
  key when its value was a scalar; an object/array under a sensitive key was
  recursed into, letting a bare nested value (e.g. {account:{number:...}})
  escape the keyword-gated pattern matcher. Now the entire subtree under a
  sensitive key is masked. No current finance tool emitted such shapes (all
  flat strings), so this closes a latent hole in the universal safety net.

+4 tests (subtree redaction, AWS-runtime guard). 411 pass; coverage gate green.

Review also produced lows (memo free-text digits, unsalted argsHash,
unauth /openapi.json by-design, session-cap no-reset by-design) tracked
separately; 0 confirmed critical/high — review verdict PASS.
 2026-06-26 13:23:02 -04:00
Adam Moussa
a60a5a5794 Add security-weighted test suite + coverage gate; wire tooling 
Add tests for the highest-risk surface (build-plan §5, design.md §7.3):
tool-hiding, server-side scope enforcement (incl. forced hidden calls),
audience binding, input-schema validation, finance redaction on egress, audit
emission with hashed args, prompt-injection regression (tool output is data),
rate limiting, MCP conformance (in-memory transport round-trip), OpenAPI 3.1
validity, and local-auth safety. Add HTTP integration tests (supertest) for both
servers and per-package dev-client tests. 405 tests pass.

Wire the coverage gate into vitest.config.ts: 80% overall, with per-file
thresholds on the auth + dispatch crown jewels; exclude deferred real client
stubs, entrypoints, cdk apps, and aws-only config from the gate (documented).
Extend eslint flat config + add .prettierignore to cover servers/. Commit the
updated package-lock.json.
 2026-06-26 12:48:26 -04:00
Adam Moussa
9bf85aef29 Add runnable sh-mcp-ops and sh-mcp-finance servers 
Two thin composition-root servers over the shared transport (design.md §3):
- ops: internal-data, knowledge-base, google-maps, gmail, calendar, tasks,
  reminders. finance: qbo, payments (audited + redacted on egress).
- config from env only (no hardcoded ids/issuer/tables); SH_MCP_ENV selects
  LocalAuthProvider + dev clients (local) vs CognitoAuthProvider + real stubs
  (aws). Finance applies the 15-min finance-token TTL ceiling (design.md §2.5).
- index.ts is the only place .listen() is called; a Lambda handler placeholder
  is exported but not depended on.
- synth-only CDK stubs (no real IAM/Cognito/WAF) so 'cdk synth' has a valid app
  (build-plan §6); READMEs document local run, dev tokens, curl, MCP Inspector.
 2026-06-26 12:48:26 -04:00