Glossary
Mode A (Enforced)
elan1 in-process, holding the write credential. No write reaches the system of record without a gate decision and a proof record.
Read the termGlossary · Term 27 of 39
Mode B (Attested advisory)
Mode B (Attested advisory) is the deployment in which elan1 is reached over MCP or HTTP and does not hold the write credential. Every write intent is still evaluated and recorded in a proof record, but because the agent's system holds the credential, elan1 advises rather than enforces. Mode A is required for enforcement.
In one sentence: elan1 over MCP or HTTP, without the credential. Every write intent is evaluated and recorded.
01In more detail
What it means in practice
In Mode B we evaluate and record. We do not say a write was blocked, because elan1 does not hold the credential that makes it.
elan1 Run tooling writes in Mode B and fails closed if elan1 is unreachable.
02Where this shows up in elan1
elan1 Work Attach, elan1 Decide, elan1 Run tooling and third-party agents.
Defined in the elan1 glossary · Last reviewed 10 Oct 2026. Definitions change only with a dated note.
// SEE IT
See the term in a governed action.
The walkthrough follows one write from intent to proof record, using the words in this glossary.