apk_signing_block_parse

Read-only parser for the APK Signing Block (schemes v2/v3/v3.1/v4) plus key-rotation lineage detection and residue-block / dex-prefix / magic-offset anomaly flags. Never mutates the APK.

SERVERJshookmcp SOURCE@jshookmcp/jshook

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-vmoranv-jshookmcp/apk-signing-block-parse.md

WHAT IT DOES

What apk_signing_block_parse does on Jshookmcp

AI agents call apk_signing_block_parse to retrieve information from Jshookmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why apk_signing_block_parse is rated Low

Parses APK signing metadata without modifying any data.

From the tool's definition Read-only parser... Never mutates the APK

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs apk_signing_block_parse safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Jshookmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For apk_signing_block_parse, this is the rule to start with:

apk_signing_block_parse Allowed

apk_signing_block_parse is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "apk_signing_block_parse": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Jshookmcp, apply this rule, and every apk_signing_block_parse call is checked against it from then on.

FAQ

Questions about apk_signing_block_parse

What does the apk_signing_block_parse tool do? +

Read-only parser for the APK Signing Block (schemes v2/v3/v3.1/v4) plus key-rotation lineage detection and residue-block / dex-prefix / magic-offset anomaly flags. Never mutates the APK. It is categorised as a Read tool in the Jshookmcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on apk_signing_block_parse? +

Register the Jshook MCP server in PolicyLayer and add a rule for apk_signing_block_parse: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Jshookmcp. Nothing to install.

What risk level is apk_signing_block_parse? +

apk_signing_block_parse is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit apk_signing_block_parse? +

Yes. Add a rate_limit block to the apk_signing_block_parse rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block apk_signing_block_parse completely? +

Set action: deny in the PolicyLayer policy for apk_signing_block_parse. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides apk_signing_block_parse? +

apk_signing_block_parse is provided by the Jshook MCP server (@jshookmcp/jshook). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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