push-to-registry
Push Packer build metadata to HCP Packer registry for tracking and managing image lifecycle. Use when integrating Packer builds with HCP Packer for version control and governance.
80
70%
Does it follow best practices?
Impact
96%
1.15xAverage score across 3 eval scenarios
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./packer/hcp/skills/push-to-registry/SKILL.mdQuality
Discovery
75%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
The description is well-structured with a clear 'what' and 'when' clause, and targets a very specific niche (HCP Packer registry). Its main weakness is that the capability description is somewhat high-level—it could benefit from listing more concrete actions. Trigger terms are adequate but could include more user-facing variations.
Suggestions
Add more specific concrete actions such as 'register image iterations, manage channels, track artifact versions' to improve specificity.
Include additional natural trigger terms users might say, such as 'artifact registry', 'golden image', 'image iteration', or 'HCP Packer channel'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (HCP Packer registry) and a general action ('push build metadata', 'tracking and managing image lifecycle'), but doesn't list multiple specific concrete actions like creating channels, assigning iterations, revoking images, etc. | 2 / 3 |
Completeness | Clearly answers both 'what' (push Packer build metadata to HCP Packer registry for tracking and managing image lifecycle) and 'when' (Use when integrating Packer builds with HCP Packer for version control and governance), with an explicit 'Use when' clause. | 3 / 3 |
Trigger Term Quality | Includes relevant keywords like 'Packer', 'HCP Packer', 'build metadata', 'registry', 'image lifecycle', and 'version control'. However, it misses common variations users might say such as 'artifact registry', 'image tracking', 'HCP Packer channel', 'iteration', or 'golden image'. | 2 / 3 |
Distinctiveness Conflict Risk | Very specific niche targeting HCP Packer registry integration, which is unlikely to conflict with other skills. The combination of 'HCP Packer', 'build metadata', and 'registry' creates a distinct trigger profile. | 3 / 3 |
Total | 10 / 12 Passed |
Implementation
64%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a solid, actionable skill with complete executable examples covering the full lifecycle from configuration to CI/CD to Terraform consumption. Its main weaknesses are verbosity in the base template (including boilerplate Claude already knows) and lack of explicit validation/verification steps after pushing metadata to the registry. The content would benefit from trimming the non-HCP-specific Packer configuration and adding a verification step.
Suggestions
Trim the basic template to focus on the hcp_packer_registry block rather than including full source and provisioner configuration that Claude already knows how to write.
Add a verification step after building, such as checking the HCP Packer API or UI to confirm metadata was pushed successfully, to create a proper feedback loop.
Consider moving CI/CD integration and Terraform querying sections to separate referenced files to keep the main skill focused on core registry configuration.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The content is mostly efficient but includes some sections that could be tightened. The full Packer template with source_ami_filter details and provisioner block is more verbose than needed—Claude knows how to write Packer templates and only needs the hcp_packer_registry block specifics. The 'Common Issues' and 'Best Practices' sections have some redundancy. | 2 / 3 |
Actionability | Provides fully executable HCL configurations, complete GitHub Actions workflow, Terraform data source usage, and concrete bash commands for authentication. All code blocks are copy-paste ready with realistic values and proper syntax. | 3 / 3 |
Workflow Clarity | The authentication setup steps are listed clearly, and the CI/CD workflow is well-sequenced. However, there are no explicit validation checkpoints—no step to verify HCP connectivity before building, no guidance on checking the registry after a push to confirm metadata arrived, and no error recovery feedback loop for failed pushes. | 2 / 3 |
Progressive Disclosure | The content is well-structured with clear section headers and progresses from basic to advanced (CI/CD, Terraform querying). However, the full Packer template and multiple integration examples make this quite long inline. The CI/CD and Terraform sections could be split into separate reference files, with the SKILL.md providing a concise overview and links. | 2 / 3 |
Total | 9 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
- Repository
- hashicorp/agent-skills
- Commit
b129bb5
- Reviewed
Table of Contents
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