fix: State the named-only filter and unnamed retention in storage lists

[jirispilka]

Why

Closes apify/ai-team#335

Review page with before/after examples for this PR and the five related ones (#1563–#1566, #1568): https://claude.ai/artifact/WDRj1nwPnMTP9ktGyg3z3i

get-dataset-list and get-key-value-store-list default to unnamed=false, so they list only named storages, while Actor runs write to unnamed ones. The response did not say the list was limited, and an empty page pointed at inspecting an entry of the empty list. Nothing served said how long unnamed storages are kept.

What changed

Summary with unnamed=false (the default) says "named"; with unnamed=true it is unchanged. On an empty page with no next page, nextStep states what unnamed=true adds instead of pointing at the empty list. Pagination hints and the hint on a nonempty last page are unchanged; tool descriptions and defaults are unchanged.

get-dataset-list call (test account: 11 named, 855 unnamed datasets)	Before	Now
defaults	Listed 10 of 11 datasets.	Listed 10 of 11 named datasets.
unnamed=true	Listed 10 of 855 datasets.	unchanged
empty page, defaults	Listed 0 of 11 datasets. / Use get-dataset with a datasetId from the list to inspect a dataset.	Listed 0 of 11 named datasets. / unnamed=true includes the unnamed datasets that Actor runs create.
empty page, unnamed=true	Listed 0 of 855 datasets. / Use get-dataset with a datasetId from the list to inspect a dataset.	Listed 0 of 855 datasets. / No follow-up step.

get-key-value-store-list does the same with "key-value stores". The server instructions' ## Storage types section gets one bullet:

- Unnamed storages are deleted after the account's data-retention period; named storages are kept until deleted.

The new text names no tool and asks for no call. This is a tool-text change to structuredContent.summary/nextStep of both list tools and to the server instructions.

Notes for reviewers (human-written)

Proof it works

mcpc with the Claude connector tool set; counts checked with apify datasets ls / apify key-value-stores ls (with and without --unnamed). The table above is this probe: "Before" on a build with master's storage code, "Now" on this branch. Empty pages use an offset past the end, so no storage was created or deleted.

get-key-value-store-list on the same account (18 named, 789 unnamed stores):

Call	summary	nextStep
defaults	Listed 10 of 18 named key-value stores.	Call get-key-value-store-list again with offset=10 to fetch the next page.
unnamed=true	Listed 10 of 789 key-value stores.	Call get-key-value-store-list again with offset=10 to fetch the next page.
offset=100000	Listed 0 of 18 named key-value stores.	unnamed=true includes the unnamed key-value stores that Actor runs create.
offset=100000, unnamed=true	Listed 0 of 789 key-value stores.	No follow-up step.

content[1].text is summary + newline + nextStep, and the retention bullet is in the served instructions.

Unit tests: the named summary on default pages, both empty-page nextStep variants (including an offset past the end) with schema validation against storageListOutputSchema, and the retention bullet in ## Storage types fail before the fix. Guards keep the unnamed=true summary and the inspect hint on a nonempty last page unchanged.

Implemented with Claude Code: code, tests, mcpc probe and this description. Reviewed by a separate Claude Code review pass.

🤖 Generated with Claude Code

https://claude.ai/code/session_0149C4bPjve1UHWcxTtBsPXC

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[jirispilka]

PR title check failed on ffc91f8 before checking anything: amannn/action-semantic-pull-request exited with "other side closed", a dropped connection to the GitHub API. The title is unchanged and passed on earlier commits. Not this PR's; I'll re-run the failed job once the rest of the workflow run finishes.

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[vojtechj-apify]

LGTM, two test nits inline.