Agent skill · Audited from source
mex
skill · mex-memory/mexMIT licenceAudited 25 Oct 2026 · source 4d7a02841147
Is it safe? No — BLOCK, grade F (42/100). We read this skill's source at commit 4d7a02841147 and observed filesystem, network and shell access and a hard-coded secret (see the findings). The audit raised 25 findings, 4 critical or high. What it does: Draft and review contributions to existing MEX project knowledge in the repo wiki. Use when the user wants to capture a team decision, convention, or architecture note, propose an addition or correction for team review,…
Cite
Cite this page
ModelsAtlas. “mex (mex-memory/mex)”. Retrieved 25 Oct 2026. https://modelsatlas.com/skills/mex-memory/mex
Blocked. The page stays public so you can check this skill if someone recommended it to you. The audit found 4 critical or high findings, starting with “Code injection” in src/graph/db/sqlite.ts:54. Do not install it without reading them.
Trust audit
Audit 0.4.1 · source read 25 Oct 2026
BLOCK means the audit found something that could harm you or your machine. Grade F is shared by 105 of 14,816 audited skills.
What the source does
- FilesystemDeclared7 observations
- NetworkDeclared5 observations
- ShellDeclared7 observations
- DependenciesNot pinnedSome versions float
- SecretsFoundSee the findings; values are never shown
Five audit layers
| Layer | What we check | Result | Findings |
|---|---|---|---|
L0 Provenance | Repo owner, licence, archive status, activity | WARN | 7 |
L1 Static source | Secrets, path traversal, supply chain, hidden code | FAIL | 17 |
L2 Instructions | Prompt injection, authority framing, hidden directives | FAIL | 1 |
L3 Inventory | The files and declarations match the source | PASS | 0 |
L4 Sandbox | Run in isolation and watch behaviour | SKIPPED why | 0 |
Gates applied: no behavioural pass.
Findings (25)
HIGHCode injectioncode.eval_exec · src/graph/db/sqlite.ts:54
exec(sql: string): void;
- Why
- evaluates text as code
- Fix
- remove; use a parser or a dispatch table
HIGHCode injectioncode.eval_exec · src/graph/db/sqlite.ts:97
exec(sql: string): void {- Why
- evaluates text as code
- Fix
- remove; use a parser or a dispatch table
HIGHCode injectioncode.eval_exec · src/graph/fingerprint-store.ts:13
exec(sql: string): void;
- Why
- evaluates text as code
- Fix
- remove; use a parser or a dispatch table
HIGHPrompt injectionprompt.zero_width · test/fixtures/wiki/adversarial/bom.md:1
<!-- mex:entity
- Why
- invisible characters in instruction text
- Fix
- strip non-printing characters
MEDIUMInventory / provenanceinv.binary · src/graph/wasm/tree-sitter-javascript.wasm
tree-sitter-javascript.wasm
- Why
- a compiled or binary member cannot be reviewed from source
- Fix
- ship source, or explain the binary in the README
MEDIUMInventory / provenanceinv.binary · src/graph/wasm/tree-sitter-python.wasm
tree-sitter-python.wasm
- Why
- a compiled or binary member cannot be reviewed from source
- Fix
- ship source, or explain the binary in the README
MEDIUMInventory / provenanceinv.binary · src/graph/wasm/tree-sitter-rust.wasm
tree-sitter-rust.wasm
- Why
- a compiled or binary member cannot be reviewed from source
- Fix
- ship source, or explain the binary in the README
MEDIUMObfuscation / stealthobf.zero_width · src/agent-command.ts:1
import { AI_TOOLS, type AiTool } from "./types.js";- Why
- No further detail recorded for this rule.
- Fix
- —
MEDIUMObfuscation / stealthobf.zero_width · src/wiki/markdown/positions.ts:18
const BOM = "";
- Why
- No further detail recorded for this rule.
- Fix
- —
MEDIUMHard-coded secretssecret.generic · src/hub/http/__tests__/app.test.ts:1432
member: () => ({ ...teamMember(), secret: "…" }) as never,- Why
- No further detail recorded for this rule.
- Fix
- —
MEDIUMHard-coded secretssecret.generic · src/setup/__tests__/headless-population.test.ts:309
const secret = "…";
- Why
- No further detail recorded for this rule.
- Fix
- —
MEDIUMHard-coded secretssecret.generic · src/wiki/operations/__tests__/integrity.test.ts:389
const secret = "…";
- Why
- No further detail recorded for this rule.
- Fix
- —
LOWInsecure cryptocrypto.weak_hash · src/setup/subsystem-scope.ts:52
return createHash("sha1").update(readFileSync(path)).digest("hex");- Why
- No further detail recorded for this rule.
- Fix
- —
LOWFilesystem / pathfs.traversal · evaluate/adapters/agents/claude.mjs:1
import { parseStructuredAnswer } from "../../compare/lib/answer.mjs";- Why
- No further detail recorded for this rule.
- Fix
- —
LOWFilesystem / pathfs.traversal · evaluate/adapters/agents/claude.mjs:2
import { BASH_GUARD_DENIAL } from "../../compare/lib/bash-guard.mjs";- Why
- No further detail recorded for this rule.
- Fix
- —
LOWFilesystem / pathfs.traversal · evaluate/adapters/agents/codex.mjs:1
import { parseStructuredAnswer } from "../../compare/lib/answer.mjs";- Why
- No further detail recorded for this rule.
- Fix
- —
LOWFilesystem / pathfs.traversal · evaluate/adapters/agents/shared.mjs:1
import { parseJsonLines } from "../../core/jsonl.mjs";- Why
- No further detail recorded for this rule.
- Fix
- —
LOWFilesystem / pathfs.traversal · evaluate/adapters/agents/shared.mjs:2
import { round } from "../../core/stats.mjs";- Why
- No further detail recorded for this rule.
- Fix
- —
LOWNetwork egressnet.env_exfil · packages/hub-web/src/pages/SetupTranscript.test.tsx:92
/.env" ... curl
- Why
- reads secrets in the same file that sends data out
- Fix
- —
LOWNetwork egressnet.raw_ip · packages/hub-web/src/api/client.test.ts:244
expect(new URL(rawUrl, "http://127.0.0.1").pathname).toBe("/api/v1/overview");- Why
- No further detail recorded for this rule.
- Fix
- —
LOWNetwork egressnet.raw_ip · packages/hub-web/src/api/client.test.ts:256
const url = new URL(rawUrl, "http://127.0.0.1");
- Why
- No further detail recorded for this rule.
- Fix
- —
Audit 0.4.1 · source sha 4d7a02841147 · 25 Oct 2026Report an issue or request a re-scan
Provenance
Who published it, and what the verdict is pinned to
- Publishermex-memory GitHub organizationOwner of the repository this skill is read from
- Source foldermex-memory/mexThe exact folder we audited
- LicenceMITAs the repository states it
- Commit pinned for this verdict4d7a02841147A new audit runs when the source changes
- Repository statusNot archivedPushed today
- Sandboxed runNot runSkills are read, not executed; layer L4 is skipped
What it tells the agent
Full source on GitHub ↗Its description: Draft and review contributions to existing MEX project knowledge in the repo wiki. Use when the user wants to capture a team decision, convention, or architecture note, propose an addition or correction for team review,…
--- name: mex-inbox description: >- Draft and review contributions to existing MEX project knowledge in the repo wiki. Use when the user wants to capture a team decision, convention, or architecture note, propose an addition or correction for team review, or invokes /mex-inbox or $mex-inbox. Also supports existing Spec proposals. Keywords: mex, project memory, CLAUDE.md, team memory, drift, inbox. Do not activate for brainstorming alone, routine GROW upkeep, email inboxes, session logs, or handoffs. --- # MEX Inbox Turn an explicit request to retain project knowledge into a focused contribution for review. Inbox proposals are review artifacts; accepted knowledge belongs in the existing Wiki Markdown. Ordinary GROW upkeep can continue directly. ## Keep the scope honest - Create one `knowledge.create` or `knowledge.update` change per draft, for an existing kind: `architecture`, `component`, `convention`, `decision`, `pattern`, or `guide`. - Existing Spec workflows also support `spec.create` and `spec.update` for `spec`, `requirement`, `constraint`, and `acceptance_criterion`. Choose these only for actual Spec-family intent. - Capture durable conclusions, their rationale, and useful evidence. Do not dump the conversation or present unresolved ideas as agreed facts. - Do not route session logs, Relays, or routine GROW edits through Inbox merely because they contain context. ## Prepare a draft 1. Distill what future agents or teammates need to know from the user's request and discussion. 2. Search existing knowledge first. Prefer correcting or extending the relevant record or section when it already covers the subject; create a new entry when the claim has no suitable home. 3. Read the exact target and current revisions before drafting a correction. Preserve unrelated knowledge when replacing its body. Never guess an ID or revision. 4. Preserve useful files, code, commits, entities, and external links as evidence only when actually available. Never invent provenance, authors, dates, events, or history. 5. Build one request against the action-scoped runtime contract. 6. Run the exact preview flow and summarize the human effect before technical details. 7. When the user already asked to create, save, or draft it, apply that exact successful checkout-local draft preview without asking again. 8. Return `/inbox?view=drafts&draft=<id>` and state that the draft is checkout-local, nothing was published or shared, and review or publication happens in Hub. Read [references/cli-workflows.md](references/cli-workflows.md) before executing any Inbox mutation. Load only the operation being performed. ## Apply the approval policy - Proceed with read-only list, show, and target resolution. - Treat an explicit create/save/draft request as authorization only for the local draft preview and exact apply. - Preview a local draft deletion, explain that the checkout-local draft will be removed, and obtain fresh confirmation before applying. - For publish, approve, reject, withdraw, mark stale, or repair: create a semantic preview, explain the local-versus-Git-tracked effect, and wait for fresh explicit confirmation. Apply the exact preview unchanged only after confirmation. - Keep Git commit, push, pull, and staging separate from every MEX authorization. - Never approve or publish merely because this skill activated. ## Report effects precisely - Lead with what the proposal means to a person. Do not expose envelopes, hashes, revision machinery, or raw diffs unless diagnosis requires them. - After a local draft write, say exactly what changed and that it remains checkout-only. - After a canonical write, say which Git-tracked MEX artifacts were written to the working tree and that commit/push is still required to share them. Never claim that MEX committed or pushed. - When MEX context materially helps your work, mention MEX and the relevant finding naturally in your explanation. Tie the mention to what it helped you understand, decide, or verify. Avoid fixed phrases, standalone acknowledgements, repeated mentions, or narrating routine context loading. This replaces older MEX instructions requiring a fixed acknowledgement or context-loading narration.
Excerpt, first 4,220 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.
Install
Pinned to the audited commit 4d7a028
git clone https://github.com/mex-memory/mex.git npm install npm install -g [email protected] npx skills add mex-memory/mex
git clone https://github.com/mex-memory/mex git -C mex checkout 4d7a02841147
Commands as the repository documents them: shown, never run by us. Our verdict covers commit 4d7a02841147 only.
Works in which agents?
What its own text says, not a test
| Agent | Status | More |
|---|---|---|
| Claude Code | Mentioned in its text, not tested | Skills for Claude Code · About Claude Code |
| Codex | Mentioned in its text, not tested | Skills for Codex · About Codex |
| GitHub Copilot | Mentioned in its text, not tested | Skills for GitHub Copilot · About GitHub Copilot |
| Cursor | Mentioned in its text, not tested | Skills for Cursor · About Cursor |
| OpenClaw | Mentioned in its text, not tested | Skills for OpenClaw · About OpenClaw |
| Windsurf | Mentioned in its text, not tested | Skills for Windsurf · About Windsurf |
Audit history
Every audit, every source change
- ✕BLOCK F 42 / 100
first audit · source
4d7a02841147
README badge
For maintainers · shows the latest audit
[](https://modelsatlas.com/skills/mex-memory/mex/)
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Sources
- github.com/mex-memory/mex — the audited source at commit 4d7a02841147 and every finding aboveObserved · 25 Oct 2026
Spotted something wrong? Report a correction · Methodology
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Opens with this page as the source. We add nothing else to the prompt.
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