Check If An Object Is Truthy In Dart
CheckedEvaluates if a Dart object (variable, expression) resolves to true when used in a boolean context.
Install on your platform
Showing Claude Code. One command installs this skill into any of the agents below.
- 1
Run this in your project
terminal$ npx skills add rodydavis/skills --skill check-if-an-object-is-truthy-in-dart -a claude-code Uses the open-source
skillsCLI and needs Node.js. Add-gto install it for your user instead of this project.
What we know about this skill
Publisher
rodydavis
Taken from the source listing. We haven't verified who controls this account.
Install target
Live repository
Not pinned. Installing fetches whatever the repository holds at the time you run the command.
Automated safety checks
This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.
Declares what it does: passed
SKILL.md parses and declares a name and a description.
SKILL.md exists, its frontmatter parses, and it declares a name and a description.
No undeclared network calls: passed
Makes no network calls.
Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.
No obfuscated payloads: passed
No encoded or obfuscated payloads.
No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.
No credential access: passed
Reads no keys, tokens, keychains or credential files.
Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.
No pipe-to-shell installers: passed
No pipe-to-shell or download-and-run installers.
No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.
Pinned to a commit: passed
Scanned rodydavis/skills at 804913dcbe.
The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.
- Commit
- 804913dcbe
- Manifest
- skills/dart_truthy/SKILL.md
- Scanned
- 1 file, 64 lines
About this skill
What it does
This skill evaluates whether a specific Dart object is truthy or falsy based on the language's type system and null safety rules. It helps AI agents determine logical flow by checking if values like null, empty collections, or zero integers evaluate to false in conditional statements.
When to use it
- Validating user input before processing data streams in a Flutter app.
- Debugging logic errors where an object unexpectedly fails a boolean check.
- Determining whether to execute code blocks dependent on optional parameters.
- Ensuring safe navigation through nullable variables without runtime exceptions.
Key capabilities
- Identifies
nulland empty strings as falsy values. - Distinguishes between zero integers (falsy) and non-zero numbers (truthy).
- Handles complex object structures by checking for instance existence.
- Aligns with Dart's strict null safety requirements.
Example prompts
- "Check if the variable
userProfileis truthy in this Dart snippet." - "Determine if an empty list returned from an API call evaluates to false."
- "Verify whether a nullable integer containing zero triggers a falsy condition."
Tips & gotchas
Ensure your AI agent understands that Dart treats null as the primary falsy value, unlike JavaScript which has multiple falsy types. Always verify that the object being checked is not explicitly cast to dynamic if strict type safety is required for accurate evaluation.