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Off-Nadir-Lab/offnadir-delta-mcp (offnadir-delta-mcp)

offnadir-delta-mcp · v1.8.0 · scanned

What changed in the harness

Selection accuracy 100%, destructive-action safety rate 0% (baseline only -- no rewrite pass applied).

Category breakdown

Where the score comes from.

Earned points across the four signals Gradable measures. Safety and Legibility are scored out of 30; Economics and Discoverability are scored out of 20.

01Safety

0.0 / 30

0.0 out of 30
02Legibility

27.5 / 30

27.5 out of 30
03Economics

12.3 / 20

12.3 out of 20
04Discoverability

11.0 / 20

11.0 out of 20

Highest-impact fix

Estimated gain +30 points

Add explicit identity and permission preflight tools

Expose machine-readable principal/tenant confirmation and a non-mutating permission check so agents can verify both before destructive actions.

Description evidence

Defects and rewrites.

0 defects found across the exposed tool descriptions. Suggested rewrites make purpose, inputs, boundaries, and returns easier for an agent to understand.

Tool Defect types Suggested rewrite
No description defects were flagged in this assessment.

Selection evidence

Confusable tool pairs.

8 pairs where similar names or overlapping descriptions may send an agent toward the wrong tool.

Tool A Tool B Confidence Why they collide
create_standing_order create_monitored_area high Both create continuous watches over a bbox ('keep an eye on this area' / 'monitor this region'); distinguishing event-based alerting from quantity-over-time measurement requires reading deep into descriptions, and create_monitored_area's own text explicitly warns of this overlap ('...rather than about events, which is create_standing_order').
search_imagery plan_event_imagery high A task like 'get me satellite imagery for this event/disaster' fits both — search_imagery is the manual bbox/date catalog search while plan_event_imagery is the event_id-driven deterministic dual-sensor plan; plan_event_imagery's own description says to prefer it 'over several search_imagery calls for the same event,' showing real functional overlap an agent could resolve either way.
list_monitored_areas get_monitored_area medium A request like 'how is the monitored area near X trending' could be served by either the summary list (most recent value + change) or the single-area full time series; only the phrase 'history/time series' cleanly disambiguates, so an agent scanning quickly could pick the wrong one.
list_standing_orders list_monitored_areas medium 'Show me what I'm watching/monitoring' is ambiguous between event-based standing orders and quantity-based monitored areas — both are 'list my watches' style calls with near-identical phrasing in the request, differentiated only by the underlying watch semantics.
query_signals query_hotspots medium A task like 'what's happening in this region' could plausibly be answered by either the filtered event list (query_signals) or the density-ranked geographic grid (query_hotspots); both accept the same bbox/date/category filters, so the choice hinges on subtle 'rows vs WHERE concentration' framing that's easy to miss.
query_signals query_stats medium 'How many kinetic events occurred in this area' could be answered via query_stats's aggregate total or by calling query_signals and counting/paging rows; both share the same filter schema, making the cheaper aggregate tool easy to overlook in favor of the more general query_signals.
query_stats query_hotspots medium Both are cheap aggregate/roll-up tools over the same bbox+date+category filters ('summarize activity here') — one gives category/day trend counts, the other geographic density bins — so a vague summarization request could be routed to either.
query_signals assess_signal medium A request like 'assess the situation at this location' could trigger a fresh query_signals search or assess_signal's AI deep-dive on an already-known event id; the shared 'signal' terminology and overlapping collection/GEOINT vocabulary make it plausible an agent invokes the wrong one when eventId isn't yet clearly established.

Compare the field

One score is useful.
The evidence makes it actionable.

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