Skills/npm/auth-errors

auth-errors@3.0.1

VERIFIED· install only

Publisher claims: "The runtime half of the MCP ABAP ADT authentication error contract: builders, renderers, allowlist guards and classification for IAuthProviderError" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher mcp-abap-adt · publishing for 359 daysInstalls 12,802Last detonated 7d ago
$claude mcp add auth-errors -- npx -y @mcp-abap-adt/auth-errors
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Coverage

Nothing executable in the bundle ran; the trace covers the install step only.
Tested
every file read, file written and host contacted by what ran
Not tested
use of the skill by an agent

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-07 and scored it 86/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 1 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
0.0sprocessno install scripts to re-run

Static findings

MEDIUM
npx invocation of non-well-known packagepackage.json:69 · npx invocation of non-well-known package — may execute untrusted code"lint": "npx biome check --write src tools/check-provider-shape.mjs",Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
CRITICAL
HTML comment carrying imperative instructions to the agentREADME.md:116 · HTML comment carrying imperative instructions to the agentBEGIN GENERATED: kinds table (npm run docs:kinds) — do not edit by handFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
MEDIUM
npx invocation of non-well-known packagepackage.json:70 · npx invocation of non-well-known package — may execute untrusted code"lint:check": "npx biome check --error-on-warnings src tools/check-provider-shape.mjs",Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
LOW
Rule modification attemptCHANGELOG.md:201 · Rule modification attempt — overwriting existing instructions · informational: not an instruction file · informational: not an instruction file · informational: not an instruction file- Shape check, rule 8: its scope now includes `src/clientAuthentication/`. TheFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
LOW
Rule modification attemptCHANGELOG.md:206 · Rule modification attempt — overwriting existing instructions · informational: not an instruction file · informational: not an instruction file · informational: not an instruction file- Shape check, rule 8: a digest (`createHash` / `createHmac` `.digest()`) orFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
npx invocation of non-well-known packagepackage.json:71 · npx invocation of non-well-known package — may execute untrusted code"format": "npx biome format --write src",Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
npx invocation of non-well-known packagepackage.json:72 · npx invocation of non-well-known package — may execute untrusted code"build": "npm run --silent clean && npx biome check src --diagnostic-level=error && npx tsc -p tsconfig.build.json",Fix: Pin versions and sources; vendor anything fetched at install time.
AST06

Cost to the agent

Instructions loaded
≈66 tok
1 file · 64 in bundle

Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.

Known vulnerabilities

No advisories in OSV for @mcp-abap-adt/auth-errors@3.0.1 as of 4 h ago. This is the package itself, not its dependencies.