Daphnis Labs

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AI Engineering

Mistral Large 4 Explained: API Pricing, Open Weights and Enterprise AI Use Cases

What Mistral Large 4's public preview means for enterprise teams: launch pricing, planned weights, document workflows and a practical evaluation plan.

AI Engineering

Claude Haiku 5.5 Explained: Pricing, Features and the 100K-Token Threshold

A practical guide to Claude Haiku 5.5: API pricing, the 100K-token boundary, caching calculations, migration changes and a production evaluation plan.

Engineering News

Search guidance review: put engineering evidence on service pages

What Google's people-first content guidance means for a software company's service pages, case studies and publishing routine.

Software Engineering

A database backup is only useful after a restore drill

Measure recovery by restoring into an isolated environment and checking the application, roles and dependencies that need the data.

Software Engineering

Cache API responses without mixing account data

Classify responses before caching them, make cache keys reflect their audience and test what happens when permissions change.

Software Engineering

Test tenant isolation beyond the main application query

Review database roles, background jobs and exports together when designing row-level security for a shared application database.

Product Engineering

Give every release flag an owner and an expiry date

Plan rollout, fallback behaviour and flag removal together so temporary release controls do not become permanent product complexity.

Software Engineering

Start observability by following one customer request

Connect traces, metrics and structured logs around a real failure path so the team can locate an incident and choose a next action.

AI Engineering

Separate read, draft and send permissions in AI tools

Define permissions around concrete actions, and make an approval apply to the exact message or record that will be changed.

Software Engineering

Build CSV imports that preview changes before writing

Separate parsing, validation and approval so an ordinary spreadsheet upload does not become an opaque bulk edit.

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Blogs

Practical perspectives on AI, product engineering, commerce and modern software delivery.