Vault Operator 3.8

3.8.2: harness improvements

Released September 15, 2026.

• A smaller task-focused prompt and tool catalog reduce recurring context overhead. Large tool results remain available in full, including during fast-path execution.
• Independent read operations run with bounded concurrency. Context compression stops retrying when it does not save space.
• A work journal preserves hypotheses, artifacts and checks across context compression and task recovery. Local verification and isolated experiments help the agent test its answers without an extra model call for each check.
• Compatible provider adapters preserve native reasoning continuation. The shared harness continues to support all providers and models with the existing model choices and reasoning budgets.
• Deep ingest receives the configured attachment and note folders as filtered context. Sending waits for attachment processing, so a file being added is included in the request.
• Meeting notes accept paged Plaud transcripts.
• Updated fast-uri and sharp to address dependency security advisories.

These changes do not establish ARC-AGI parity or a guaranteed cost reduction for every task and model. See quality and cost for the verification behavior.