feat: surface serverFingerprint on agent mcp fetch/asset replace @W-23608280 - #466
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…3608280 Wire the MCP tool-drift fingerprint through the CLI: - `agent mcp fetch` now prints the `serverFingerprint` returned by POST /fetch (an opaque hash of the server's current tool definitions). - `agent mcp asset replace` gains `--server-fingerprint` (`-f`): round-trip the value from a prior fetch so the server can confirm the reviewed definitions haven't drifted. Without it, keeping an already-active OUT_OF_SYNC tool active is rejected with a 409 conflict — re-fetch, review, then resend with the new fingerprint. Bumps @salesforce/agents for the McpServerFetchOutput/McpServerAssetReplaceInput serverFingerprint field. Regenerated command-snapshot.json and the fetch schema. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Summary
Wires the MCP tool-drift fingerprint through the CLI so admins can protect an
active tool from a silent description swap (rug pull) on an EXTERNAL MCP server.
agent mcp fetchnow prints theserverFingerprintreturned byPOST /fetch(an opaque hash of the server's current tool definitions).
agent mcp asset replacegains--server-fingerprint(-f): round-trip thevalue from a prior fetch so the server can confirm the reviewed definitions
haven't drifted. Without it, keeping an already-active
OUT_OF_SYNCtool activeis rejected with a
409conflict — re-fetch, review, then resend with the newfingerprint.
Dependency
Requires the
serverFingerprintfield added in forcedotcom/agents#325(
McpServerFetchOutput/McpServerAssetReplaceInput). Merge and publish thatfirst, then this PR bumps
@salesforce/agentsto the published version.What's included
src/commands/agent/mcp/fetch.ts— print the fingerprint after the assets table.src/commands/agent/mcp/asset/replace.ts— add the--server-fingerprintflagand forward it into the replace input.
messages/agent.mcp.fetch.md,messages/agent.mcp.asset.replace.md— docs,flag summary, and an example round-tripping the fingerprint.
command-snapshot.jsonandschemas/agent-mcp-fetch.json.Test plan
tsc --noEmit— clean.eslinton the changed commands — clean.bin/dev.js schema:compare— no changes detected.bin/dev.js snapshot:compare— no changes detected.🤖 Generated with Claude Code