io.github.jagoff/memo

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

  pass15% of grade

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

  Reads secrets from the environment (e.g. src/memo/cache_backend.py) — the recommended intake shape. PASS = no static red flag; static analysis cannot prove the code honors env-based secret handling at runtime.

• Permission scope

  fail15% of grade

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

  HIGH: src/memo/runtime/agent_presets.py: references a sensitive credential path (/mcp.json) — the tool-poisoning exfiltration target. HIGH: src/memo/runtime/mcp_config.py: references a sensitive credential path (/mcp.json) — the tool-poisoning exfiltration target. HIGH: shell/exec capability AND network egress together — download-and-execute risk (src/memo/cache_backend.py: subprocess.* call; src/memo/eval_bench.py: outbound HTTP/socket call). HIGH: shell/exec capability AND destructive filesystem writes together (src/memo/cache_backend.py: subprocess.* call; src/memo/atomic_io.py: destructive filesystem call (shutil.rmtree/os.remove/etc.)). discloses shell/exec capability: src/memo/cache_backend.py: subprocess.* call discloses shell/exec capability: src/memo/claim_support.py: subprocess.* call discloses shell/exec capability: src/memo/cli_crossdedup.py: subprocess.* call discloses shell/exec capability: src/memo/cli_dashboard.py: subprocess.* call discloses shell/exec capability: src/memo/cli_import.py: subprocess.* call discloses shell/exec capability: src/memo/cli_sync.py: subprocess.* call discloses shell/exec capability: src/memo/git_miner.py: subprocess.* call discloses shell/exec capability: src/memo/ingest_helpers.py: subprocess.* call discloses shell/exec capability: src/memo/receipts.py: subprocess.* call discloses shell/exec capability: src/memo/repo_index_helpers.py: subprocess.* call discloses shell/exec capability: src/memo/server_session_patterns.py: subprocess.* call discloses shell/exec capability: src/memo/session_sources.py: subprocess.* call discloses shell/exec capability: src/memo/synapse_client.py: subprocess.* call discloses shell/exec capability: src/memo/sync_git.py: subprocess.* call discloses shell/exec capability: src/memo/integrations/wrap.py: subprocess.* call discloses shell/exec capability: src/memo/resume/_formatting.py: os.system/os.popen/os.exec* call discloses shell/exec capability: src/memo/resume/_preview.py: subprocess.* call discloses shell/exec capability: src/memo/runtime/autoupdate.py: subprocess.* call discloses shell/exec capability: src/memo/runtime/codex.py: subprocess.* call discloses shell/exec capability: src/memo/runtime/daemon.py: subprocess.* call discloses shell/exec capability: src/memo/runtime/mcp.py: subprocess.* call discloses shell/exec capability: src/memo/runtime/update.py: subprocess.* call discloses shell/exec capability: src/memo/tui/config/impact.py: subprocess.* call discloses shell/exec capability: src/memo/tui/config/screens.py: subprocess.* call discloses shell/exec capability: src/memo/tui/dashboard/panels.py: subprocess.* call discloses dynamic code execution: src/memo/cli_backup.py: uses eval/exec/__import__ discloses dynamic code execution: src/memo/cli_dream_passes.py: uses eval/exec/__import__ discloses dynamic code execution: src/memo/cli_eval.py: uses eval/exec/__import__ discloses dynamic code execution: src/memo/dream_flags.py: uses eval/exec/__import__ discloses dynamic code execution: src/memo/flags_misc.py: uses eval/exec/__import__ discloses dynamic code execution: src/memo/server_multimodal.py: uses eval/exec/__import__ discloses dynamic code execution: src/memo/graduation/registry.py: uses eval/exec/__import__ discloses dynamic code execution: src/memo/runtime/update.py: uses eval/exec/__import__ discloses broad/destructive filesystem access: src/memo/atomic_io.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/cli_dashboard.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/cli_idle_daemon.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/cli_ingest_daemon.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/cli_maint_daemon.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/cli_maintain.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/cli_memory.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/cli_recall_daemon.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/cli_recap.py: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/memo/cli_release.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/cli_session.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/cli_transcripts.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/dream_utils.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/embedder.py: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/memo/lifecycle.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/repo_index.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/server.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/server_idle_capture.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/session.py: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/memo/synapse_backend.py: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/memo/sync.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/sync_git.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/sync_signal.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/token_ledger.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/token_meter.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) discloses broad/destructive filesystem access: src/memo/memory/write_ops.py: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/memo/runtime/autoupdate.py: open(…, 'w'/'a'/'x') write-mode file access discloses broad/destructive filesystem access: src/memo/setup/config_io.py: path traversal ('../') combined with file access discloses broad/destructive filesystem access: src/memo/store/queries.py: destructive filesystem call (shutil.rmtree/os.remove/etc.) 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 3.7.0 (minor bump): new capability primitive(s) in source: dynamic-eval, fs-write, http-client, subprocess; new hardcoded outbound host/BCC destination(s): 127.0.0.1, api.openai.com, cli.github.com, huggingface.co, pypi.org, raw.githubusercontent.com, www.apple.com, www.w3.org.

• Transport config

  fail10% of grade

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

  source performs runtime self-update / download-and-execute (bypasses version_behavior); manifest/source references analytics behavior — disclosure