io.github.0Mattias/bettermemory

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

  unscannable25% of grade

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

  No tool descriptions, server instructions, prompts, or resources were fetched; nothing to scan for injection.

• Supply chain

  fail25% of grade

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

  Python build script executes at build time: subprocess in build script, network call in build script

• Credential hygiene

  fail15% of grade

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

  src/bettermemory/credentials.py: contains a hardcoded Slack token (xoxb…en (len 19)). Reads secrets from the environment (e.g. bench/longmemeval/cm_ingest.js) — the recommended intake shape.

• Permission scope

  warn15% of grade

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

  has both shell/exec and network egress — capable of download-and-run, though no such path was observed (bench/msc_scale_census.py: subprocess.* call; bench/instruments/beir_fetch.py: outbound HTTP/socket call). has both shell/exec and destructive filesystem writes (bench/msc_scale_census.py: subprocess.* call; bench/base_leg_census.py: destructive filesystem call (shutil.rmtree/os.remove/etc.)). discloses shell/exec capability: 24 files (bench/msc_scale_census.py, bench/register_df_census.py, bench/requery_census.py, +21 more) discloses broad/destructive filesystem access: 44 files (bench/base_leg_census.py, bench/base_withhold_check.py, bench/dense_scoring_census.py, +41 more) Capability DISCLOSURE, not a verdict: static analysis sees the primitive is present and reachable, not whether its use is attacker-controlled.

• 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 6.6.0 (major bump): new capability primitive(s) in source: child_process, fs-write, http-client, subprocess; new hardcoded outbound host/BCC destination(s): ..., 127.0.0.1, api.github.com, archive.org, dumps.wikimedia.org, example.com, example.invalid, github.com, gitlab.com, huggingface.co, modelcontextprotocol.io, parl.ai, public.ukp.informatik.tu-darmstadt.de, pypi.org, user, www.github.com, www.gutenberg.org, www.w3.org.

• Transport config

  warn10% of grade

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

  sends telemetry to third-party SDK (amplitude) — disclosure, verify opt-in; manifest/source references telemetry behavior — disclosure