Agent approvals and retrieval tooling updates #101
Today's Letter
- Vercel, Chat SDK approval workflows introduced
- Castform, Neon-backed retrieval training example published
Vercel, Chat SDK approval workflows introduced
- Chat SDK adds human-in-the-loop approvals through the new `chat/workflow` subpath
- A single `requestApproval` call posts an approval card and suspends a Workflow SDK workflow
- Approvals can remain pending for seconds or days across deploys and restarts
- Scoped approvers restrict decisions to specified users, while unauthorized clicks leave the workflow waiting
- Platform signatures verify the deciding user, and completed cards are updated with the outcome
- The example configures a 24h timeout for deployment approval
- The flow removes the need for a separate approvals table, action handler, or polling loop
Source: vercel.com
Castform, Neon-backed retrieval training example published
- Castform published a retrieval-training example backed by Neon Postgres
- The environment combines hybrid vector search and full-text search over Markdown documents
- Retrieved passages are used to generate grounded answers with citations
- A judge scores correctness, retrieval quality, citation quality, and concision
- The default workflow generates 20 Q&A pairs, split into 16 training and 4 evaluation examples
- The example uses gpt-5.4-mini as the judge model
- The repository notes that the implementation is not production-ready and recommends a dedicated search API
Source: github.com
More: neon.com · news.hada.io · castform.com
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