Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add sutchan/Agent-Skills-Hub --skill dart-resolve-package-conflictsgit clone --depth 1 https://github.com/sutchan/Agent-Skills-HubWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/sutchan/agent-skills-hub/dart-resolve-package-conflicts)<a href="https://agentmods.dev/skills/sutchan/agent-skills-hub/dart-resolve-package-conflicts"><img src="https://agentmods.dev/badge/skills/sutchan/agent-skills-hub/dart-resolve-package-conflicts/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/sutchan/agent-skills-hub/dart-resolve-package-conflicts"><img src="https://agentmods.dev/badge/skills/sutchan/agent-skills-hub/dart-resolve-package-conflicts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00028 | $0.01231 |
| Opus 5 | $0.00014 | $0.00616 |
| Sonnet 5 | $0.00006 | $0.00246 |
| Haiku 4.5 | $0.00003 | $0.00123 |
Grade A, and why
dart-resolve-package-conflicts scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
This is a copy
98% identical to dart-resolve-package-conflicts — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Managing Dart Dependencies
Contents
- Core Concepts
- Version Constraints
- Workflow: Auditing Dependencies
- Workflow: Upgrading Dependencies
- Workflow: Resolving Version Conflicts
- Examples
Core Concepts
Dart enforces a strict single-version rule for dependencies: a project and all its transitive dependencies must resolve to a single, shared version of any given package. This prevents runtime type mismatches but introduces the risk of "version lock."
To mitigate version lock, Dart relies on version constraints rather than pinned versions in the pubspec.yaml. The pubspec.lock file maintains the exact resolved versions for reproducible builds.
Understand the output columns of dart pub outdated:
- Current: The version currently recorded in
pubspec.lock. - Upgradable: The latest version allowed by the constraints in
pubspec.yaml.dart pub upgraderesolves to this. - Resolvable: The absolute latest version that can be resolved when factoring in all other dependencies in the project.
- Latest: The latest published version of the package (excluding prereleases).
Version Constraints
- Use Caret Syntax: Always use caret syntax (e.g.,
^1.2.3) for dependencies inpubspec.yaml. This allowspubto select newer, non-breaking versions (up to, but not including, the next major version) during resolution. - Tighten Dev Dependencies: Set the lower bound of
dev_dependenciesto the exact version currently used. This reduces resolution complexity and prevents older, incompatible dev tools from being selected. - Enforce Lockfiles in CI: Use
dart pub get --enforce-lockfilein CI/CD pipelines to ensure the exact versions tested locally are used in production.
Workflow: Auditing Dependencies
Run this workflow periodically to identify stale packages that may impact stability or performance.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago Changed · -4 lines · +2 tokens per session 967093ae2bca
- 8d ago First seen · 121 lines · 26 tokens per session scan A 81298d4d65af
dart-resolve-package-conflicts is a skill published in the GitHub repository sutchan/Agent-Skills-Hub (2 stars, last pushed yesterday), licensed MIT. It adds 28 tokens to every session and 1,231 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to dart-resolve-package-conflicts, differing in 0 lines, and is treated as a copy.
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