git_short_sha
Git Short SHA Abbreviator — Truncate a full or partial git object ID (SHA-1/SHA-256 hex) to a short prefix, matching 'git rev-parse --short' behavior.
This record as markdown: /tools/com-wingmanprotocol-agent-gateway/git-short-sha.md
What git_short_sha does on Gateway
AI agents call git_short_sha to retrieve information from Gateway without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
sha | string | Yes | Full or partial hex object ID |
length | integer | — | Abbreviation length, 4-64 (default 7) |
Parameters from the server's own tool schema.
Why git_short_sha is rated Low
This tool performs a pure data transformation/formatting operation on a provided git SHA string. It does not execute commands, modify repositories, create or delete anything, or trigger side effects. It is equivalent to a deterministic string manipulation utility (similar to the 'ansi_strip' tool mentioned as a sibling).
From the tool's definition Tool description explicitly states it 'Truncate[s] a full or partial git object ID' and 'matching git rev-parse --short behavior' — these are read-only query operations that retrieve and format existing data without modification, creation, deletion, or…
Attacks that exploit this kind of access
The rule that runs git_short_sha safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For git_short_sha, this is the rule to start with:
git_short_sha is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Gateway, apply this rule, and every git_short_sha call is checked against it from then on.
Questions about git_short_sha
Git Short SHA Abbreviator — Truncate a full or partial git object ID (SHA-1/SHA-256 hex) to a short prefix, matching 'git rev-parse --short' behavior. It is categorised as a Read tool in the Gateway MCP Server, which means it retrieves data without modifying state.
git_short_sha accepts 2 parameters: sha, length. Required: sha. The full parameter table on this page comes from the server's own tool schema.
Register the Gateway MCP server in PolicyLayer and add a rule for git_short_sha: 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 Gateway. Nothing to install.
git_short_sha is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the git_short_sha 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.
Set action: deny in the PolicyLayer policy for git_short_sha. 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.
git_short_sha is provided by the Gateway MCP server (https://wingmanprotocol.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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