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stream-feeds-migration

Generate the v2 -> v3 sync mapping for a Stream Activity Feeds app by sampling its live v2 activities and reactions and, when the app's v2 integration code is available, reading its write paths, and, from that code, plan how the app's code moves from v2 to v3. Use when setting up a Feeds v2 to v3 migration, when asked to build, review, or debug a v3 sync mapping, when someone asks 'what mapping do we need for our app?', when asked how to port an app's v2 Feeds code to v3, or when a migrated activity lands in v3 with missing text, missing attachments, comments that are not comments, or bookmarks that went missing. Triggers on v3sync, v2 to v3, feeds migration, activity feeds migration, sync mapping, extra_context, reaction kinds, comments and bookmarks mapping, porting plan. The same mapping drives both the live syncer and the bulk exporter.

Quality

94%

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SecuritybySnyk

Critical

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SKILL.md
Quality
Evals
Security
Critical

E004: Prompt injection detected in skill instructions.

What this means

Detected a prompt injection in the skill instructions. The skill contains hidden or deceptive instructions that fall outside its stated purpose and attempt to override the agent’s safety guidelines or intended behavior.

Why it was flagged

The skill is a legitimate migration mapper, but its instructions direct the agent to conceal undocumented "legacy layout flags" from the user, even from its own output, which hides part of the sync configuration's behavior without malicious intent.

Report incorrect finding
Low

W011: Third-party content exposure detected (indirect prompt injection risk).

What this means

The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.

Why it was flagged

The required workflow automatically pulls the newest raw activities and reactions from the app's live v2 Feeds store via the migration sample endpoints, and those payloads include free text (post bodies, comment text) that any end user of the app can write, without the agent selecting a specific item.

Repository

GetStream/agent-skills

Path

skills/stream-feeds-migration/SKILL.md

Audited
Security analysis
Snyk

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