MCP Path
Eval-CoverageEvidence-Contract
Eval-CoverageEvidence-Contract is a public reference for URL coverage, evidence, and completion gates. It names the signal, policy, or flow an agent should understand before choosing a concrete tool.
Reference page for a documented MCP capability path.
- Type
- MCP path
- Family
- ETM Task URL Coverage (Feature Request)
- Effect
- changes state
- Status
- Reference
- Path
- 54.7
Purpose
What this entry explains
What it does
This reference explains Eval-CoverageEvidence-Contract for URL coverage, evidence, and completion gates. It is kept as a named reference so agents can cite the flow without inventing a tool name.
Use when
- Use this entry when an agent needs to carry out the bounded step "Eval-CoverageEvidence-Contract" for URL coverage, evidence, and completion gates.
- Use it as a reference path when the catalog describes a capability but no single public tool name is explicit.
- Use it before chaining follow-up tools so the next step is based on current evidence.
Reference Use
How agents should cite and apply this area
Examples are maintained at family level and use only public tool names or reference paths already present in the catalog.
Eval-CoverageEvidence-Contract describes a gate for URL coverage, evidence, and completion gates. The path shows which signal, gate, behavior, or boundary must be checked before choosing a concrete tool.
An agent cites this path when it needs Eval-CoverageEvidence-Contract as context for a decision, block, target check, or follow-up tool choice.
The public source does not name one callable tool for this path. The documentation therefore keeps it as a reference path and does not invent a callable name.
Relevant response signals: eval, coverageEvidence. Safety axes: Browser state, Automation, High-impact execution, User confirmation. The reference path alone is not permission to execute. Before acting, check current MCP discovery, visible target, scope, and the actual response.
Family example
A task in URL coverage, evidence, and completion gates can trigger powerful execution and therefore needs target, approval, and result check before the step.
The agent starts with nova.coverage_scan, reads the current response or reference, and only then chooses the concrete next tool.
Current discovery, target, user control, warning signals, and result check come before execution.Contract
Inputs and important response fields
This page is a public reference. Agents and integrators should still read current MCP tool discovery before execution, because schemas can be gated by settings or version.
Inputs
No stable public input field is derived from the catalog source for this path. Read current MCP discovery before execution.
| Response field | Explanation |
|---|---|
eval | Response field named by the catalog source. Treat it as current evidence for the next decision. |
coverageEvidence | Response field named by the catalog source. Treat it as current evidence for the next decision. |
Safety
Boundary before execution
Can change browser, page, or workflow state. The target and expected result must be clear before execution.
Confirm the current target first, perform only the intended bounded action, and verify the resulting page or workflow state afterwards.
For humans, this entry names the browser or workflow state in URL coverage, evidence, and completion gates that may change, so the action can be reviewed before and after execution.
High-Impact Review
Execution boundary and recheck hints
Review category: Eval/CDP/diagnostics
Run only on the currently confirmed target; expression, expected result, and visible context must be clear before the call.
False assumption: because a script is intended to read, the path is automatically harmless.
The user must be able to see which page is targeted and why code, CDP, or diagnostics are being run.
Before execution, check current discovery, target, expression, and stop signal; do not derive additional scripts from the result.
Abort or recheck if the target changed, the expression touches third-party data, or the response contains warnings.
Safety Axes
How this path can affect work
Axes are stable catalog signals for humans, agents, and LLM discovery. One path can carry several axes.
browser_state_change
Changes tab, navigation, focus, claim, scroll position, window state, or browser environment.
Confirm the target context visibly before execution and verify that the expected browser state was reached afterwards.automation_run
Starts or monitors crawls, sequences, schedulers, tasks, batches, or longer runs.
Keep scope, budget, progress, stop condition, and terminal status visible before and during the run.high_impact_execution
Runs or prepares JavaScript, CDP, plugin code, auto-apply, or other powerful execution paths.
Explicitly confirm current tool discovery, target, scope, user control, and result check before execution.user_confirmation
Requires visible confirmation, target review, approval, or deliberate user control.
Do not proceed until the required confirmation is visible or unambiguous in the current context.