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blob-storage

Skill

Use when a val needs simple key/value persistence — JSON documents, cached responses, uploaded files, or binary assets. Covers the std/blob API, listing and deleting keys, account-global or val scoping, and storage limits.

0Documents

Install

git clone https://github.com/val-town/plugins.git ~/.claude/skills/blob-storage

What is blob-storage?

Use when a val needs simple key/value persistence — JSON documents, cached responses, uploaded files, or binary assets. Covers the std/blob API, listing and deleting keys, account-global or val scoping, and storage limits.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~56 tokens of context used while enabled, before you invoke anything

Documentation

README · ~3 min read

Blob Storage

Val Town provides built-in key/value blob storage via the std/blob module. Reach for it whenever a val needs to persist simple values — JSON documents, cached API responses, uploaded files, or binary assets — keyed by a string. For relational or structured data you query with SQL, prefer std/sqlite instead.

Scoping: account-global or per-val depending on import

There are two exports of the blob utility: global.ts, which is scoped to the user account, and main.ts, which is scoped to the val itself. Prefer the main.ts interface and val scoping for new vals.

Here is the scoped import:

/**
 * Importing from `main.ts` provides an interface to val-scoped blobs.
 */
import { blob } from "https://esm.town/v/std/blob/main.ts";

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