Files
hermes-agent/tools
Teknium 3eac116b9d fix(mcp): invalidate OAuth tokens when the configured client changes
Port from cline/cline#12983 (the 'invalidate tokens when OAuth client
changes' invariant): tokens are minted for a specific client_id, so after
a user edits oauth.client_id / oauth.client_secret in config.yaml the old
tokens can only fail with invalid_client. Pre-registered clients are
deliberately exempt from the invalid_client auto-poison path, so the stale
tokens wedged every request until ~/.hermes/mcp-tokens/<server>.* was
wiped by hand.

_maybe_preregister_client() now compares the on-disk client.json identity
against the incoming config identity before overwriting it and discards
tokens.json + meta.json on a mismatch (with a log line pointing at
hermes mcp login). Unchanged identity is a strict no-op.

Proven live on main with an isolated-HERMES_HOME E2E probe; regression
tests sabotage-verified (fail without the wiring line).
2026-08-12 19:44:17 -07:00
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