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 it could be more specific about the concrete actions it supports beyond 'push build metadata' and could include more natural trigger term variations that users might use when seeking this functionality.
Suggestions
Add more specific concrete actions such as 'register image iterations, manage channels, track artifact metadata' to improve specificity.
Include additional trigger terms users might naturally say, such as 'artifact registry', 'HCP Packer channel', 'image iteration', or 'packer build tracking'.
| 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 '.pkr.hcl'. | 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 details Claude already knows about Packer sources/provisioners) and missing validation checkpoints for authentication and registry connectivity before builds.
Suggestions
Trim the basic configuration example to focus on the hcp_packer_registry block specifically, showing only a minimal source block stub since Claude already knows how to write Packer source configurations.
Add a pre-flight validation step such as `packer validate .` and an HCP API connectivity check before running the full build, especially given that builds fail immediately on metadata push failure.
Consider moving CI/CD integration and Terraform querying sections to separate referenced files to improve progressive disclosure and reduce the main skill's token footprint.
| 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 | The skill provides fully executable HCL configurations, bash commands for authentication, a complete GitHub Actions workflow, and a Terraform data source example. All code blocks are copy-paste ready with realistic values and proper syntax. | 3 / 3 |
Workflow Clarity | The authentication setup steps are listed but lack validation checkpoints—there's no step to verify HCP connectivity before running a full build. The CI/CD workflow doesn't include validation of registry push success. For an operation that 'fails immediately if can't push metadata,' explicit pre-flight checks would improve reliability. | 2 / 3 |
Progressive Disclosure | The content is well-structured with clear section headers, but it's somewhat monolithic at ~150 lines. The Terraform querying section and CI/CD integration could be referenced as separate files rather than inlined, especially since they serve different use cases than the core registry configuration. | 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
de4323a
- Reviewed
Table of Contents
Is this your skill?
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.