add-package SKILL.md skillA
add-package from devoncarew/flutter-slipstream is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add devoncarew/flutter-slipstream/add-package@git:20260427.0584ad2Pins git:20260427.0584ad2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- devoncarew/flutter-slipstream
- Path
skills/add-package/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260427.0584ad2, committed Apr 27, 2026
- First version recorded
- Apr 27, 2026
- Size
- 2,266 bytes
- Repository stars
- 5
- License
- BSD-3-Clause
This skill should be used when about to add a Dart or Flutter package dependency — running flutter pub add, dart pub add, or editing pubspec.yaml to introduce a new package. Also load when choosing a specific version constraint for a new package. Skip for upgrading existing packages (pub upgrade), removing packages, or pub commands that don't introduce a new dependency.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Adding a Dart/Flutter Package Dependency ## Preferred approach Use `flutter pub add <package>` (or `dart pub add`) rather than editing `pubspec.yaml` directly. The pub command output is the primary signal for package health; direct edits bypass it. ## Read pub output after every add After running `pub add`, read the output carefully before proceeding. Two classes of problem appear inline: ### Discontinued packages ``` + flutter_markdown 0.7.7+1 (discontinued replaced by flutter_markdown_plus) ... 1 package is discontinued. ``` Action: - If a replacement is listed: remove the discontinued package and add the replacement instead (`flutter pub remove <pkg>` then `flutter pub add <replacement>`). - If no replacement is listed: find a well-maintained alternative before proceeding. ### Version pinned behind current major ``` + lints 4.0.0 (6.1.0 available) ... 4 packages have newer versions incompatible with dependency constraints. ``` The `(X.Y.Z available)` annotation on a package you just added means the version you requested is behind the current release — often by a major version. Action: - Run `flutter pub outdated` to see the structured breakdown: ``` …
Read the whole file at its exact version.
How to install
mdr add devoncarew/flutter-slipstream/add-package@sha256:3c423b2062e73bb9The line at the top of this page pins the label git:20260427.0584ad2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_l2a6qgoch3oomo26)
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Versions
The registry has recorded 2 versions of this file, all committed on Apr 27, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260427.0584ad2 latest | 2026-04-27 | 0584ad2 | 2,266 B | A | view · diff |
| git:20260427.23dd73f | 2026-04-27 | 23dd73f | 2,449 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2266 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
devoncarew/flutter-slipstream · 5 stars · license BSD-3-Clause · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_l2a6qgoch3oomo26 GET https://markdownregistry.com/api/v1/resolve?ref=devoncarew/flutter-slipstream/add-package GET https://markdownregistry.com/api/v1/blob/3c423b2062e73bb90dce6a178699cfa0484b95bf1846da1671683acf8881073a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.