This release is a pre-release and may not be stable for production use.
bazaar-contrib-harness
Enable the harness provider registry. Install a concrete harness provider separately.
Call a registered builder's inspect(workspace, timeout=...) to query availability,
the provider CLI version, models, reasoning efforts, workspace skills and MCP servers before
creating an agent or session. The result is a HarnessInspection; its error
field reports query failures alongside any metadata already returned.
HarnessInspection.mcp_servers contains HarnessMcpServer entries with the server
name, provider-reported authentication status and discovered HarnessMcpTool entries.
Each tool carries its name, optional description and actual JSON input schema.
Providers query their MCP inventory in the requested workspace and preserve partial
results in the inspection if a later query fails.
SessionInput.approval_policy uses ApprovalPolicy.ON_REQUEST or NEVER.
sandbox_policy uses SandboxPolicy.WORKSPACE_WRITE or DANGER_FULL_ACCESS;
network_access carries the selected network permission. The upstream agent
selects these policies from the session's Actor. Each provider translates them
into its native protocol and retains them when resuming that session.
Provider configuration reads the fields it uses and ignores additional fields.
Execution calls return confirmed or failed. A failed call or terminal output
carries HarnessFailure with a provider-neutral reason, the actual message
and an optional original error code. needs_reconciliation asks the agent to
query and reconnect to the existing execution before deciding its final result.
Recovery and retry errors go to audit/logs; Channel feedback shows the final
failure if no execution provider completes the request.
An approval request offers allowed_scopes using ApprovalScope, a StrEnum
with ONCE, SESSION, and ALWAYS. ApprovalResult.scope selects one of those
scopes and defaults to ONCE. The decision remains approved or rejected.
Providers map the selected scope into their own authorization protocol.
In dangerous_individual mode, the agent approves every request directly.
bcn contrib add harness --enable
The corresponding entry in config.toml:
version = "5"
[[contribs]]
package = "bazaar-contrib-harness~=0.3.0rc1"
[[contribs.enabled]]
entry = "harness-builders"
1 maintainer
Metadata
1 maintainer
Release files for bazaar-contrib-harness 0.3.0rc5
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