The agent assembled a partial but usable overview of Sainsbury's by fetching the corporate site and working around 403 blocks on the consumer-facing homepage and help pages by relying on search result snippets. The site's 403 barriers and lack of detailed consumer-facing documentation made direct content retrieval impossible; the agent filled substantial gaps using model memory and explicit acknowledgment of what it could not verify.

• ›Step [4] (corporate.sainsburys.co.uk) was the only direct content-bearing fetch from the target domain, and it provided high-level business positioning but omitted financial details, subsidiary explanations, and consumer pricing — forcing reliance on search results and model memory for the task's full scope.
• ›Steps [0], [3], [6] all returned 403 Forbidden, blocking direct access to the homepage and help/delivery pages; the agent adapted by using web search to surface help page snippets (step [7]), but this meant pricing and operational details came via search result fragments rather than full page reads.
• ›The agent explicitly cited step [7]'s search results in its sources, treating search snippets as content-bearing, but the actual page fetches from the help domain (help.sainsburys.co.uk) were never retrieved — only linked in search results. This means the agent did not verify the accuracy of snippet claims.
• ›Critical gaps the agent identified but could not close: Argos, Habitat, Tu, Nectar360, Smart Charge, and Sainsbury's Bank are named by the corporate site with no explanation of what they do or how they are monetised; financial breakdown between grocery and non-grocery revenue is absent; and the 'Next Level Sainsbury's' strategy is mentioned without detail.
• ›The agent's final response explicitly disclaims competitor research and notes conflicting Midweye Delivery Pass pricing (£40 vs. £50), signalling it assembled facts from multiple dates without a canonical current state — a direct consequence of incomplete site crawl capability.