Error Handling taste
# Error handling taste of a TypeScript backend engineer - Fail fast at the edges: validate every external input with a schema library such as Zod before it reaches business logic. Confidence: 0.
- Kind
- Prompt
- Works with
- Any agent
- Languages
- TypeScript / JavaScript
- Source
- prompts.chat: prompts for developers @ dcab86ce9c26
- Path
- items/error-handling-taste
- Jobs
- Debugging, Testing, Automation
- Topics
- Backend frameworks, Databases
- Tags
- role-prompt
Credit
- Made by
- f
- Original
- https://prompts.chat/prompts?q=Error+Handling+taste
- License
- CC0-1.0
Listed by Skill Manifest; not made by us.
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Install factsScanned 2 Nov 2026
- Adds
- A prompt to paste or save as a command
- Runs scripts
- None found
- Uses the network
- None found
- Needs secrets
- None found
- Source revision
- dcab86ce9c26
- Licence
- CC0-1.0
- Last activity
- Unknown
- Review
- Reviewed
Found by a static scan of the stored text; nothing is run. “None found” is not a guarantee, so read what you install before you run it.
- The source's last activity is not known yet
# Error handling taste of a TypeScript backend engineer - Fail fast at the edges: validate every external input with a schema library such as Zod before it reaches business logic. Confidence: 0.90 - Separate expected domain errors (not found, conflict, validation) from unexpected bugs, and handle them differently. Confidence: 0.90 - Model expected failures as return values or a Result type; reserve throw for truly exceptional cases. Confidence: 0.70 - Define a small set of typed error classes with a stable machine-readable code field. Confidence: 0.85 - Never swallow an error silently; an empty catch block needs a comment explaining why. Confidence: 0.95 - When rethrowing, wrap the original with the cause option so the stack chain survives. Confidence: 0.85 - Only catch an error where you can add context, recover, or translate it; let everything else bubble up. Confidence: 0.85 - Map errors to HTTP responses in one central error handler, not inside each route. Confidence: 0.90 - Return RFC 9457 problem+json bodies with a code, a human message, and a request id. Confidence: 0.75 - Never leak stack traces, SQL, or internal hostnames to API clients. Confidence: 0.95 …