Pin the SHA Yourself: What an Attested Marketplace Buys You
How an attested Claude Code plugin marketplace verifies, signs, and SHA-pins releases, and why none of it replaces deciding your own upgrades yourself.
Robert Allen
Technologist | Regenerative Agriculturist
Passionate about building robust, scalable systems and contributing to open source software. Specializing in backend architecture, API design, and developer tools. Author of open specifications for AI memory interchange and extension packaging.
Recent Posts
Friday Roundup - Week 27: Evidence Beats Demos
Coding-agent evaluation, Copilot governance, Claude model policy, secret exposure, API access limits and soil sensing finance defined the developer week.
Honest DORA: Define a Deployment Before You Measure
Every DORA metric counts deployments, but DORA never defines one. Pin it down, instrument all five metrics, decompose lead time, and segment by AI cohort.
Supply-Chain Hazards That Got Real in 2026, and the Fixes
The trivy-action compromise, mutable tags as the root bug, the Rekor v2 rotation that breaks old clients, and why a copy can orphan your attestations.
Friday Roundup - Week 26: Control Moves From Cooperation to Enforcement
Agent safety research says cooperation is not control, coding tools fenced off what agents can reach, and APIs and farm sensors became evidence surfaces.
Produce a Software Bill of Materials You Can Actually Use
A useful software bill of materials is in a format your tools read, bound to the exact digest that ran, and re-scannable without a rebuild. Produce one anyway.
SLSA Build Level 3 Is an Isolation Property, Not a Project
SLSA Build Level 3 is not a project. It is an isolation property: the platform keeps signing material out of user-controlled build steps and isolates runs.
Friday Roundup - Week 25: Enforced Supply-Chain Controls and Agent Knowledge
GitHub moved Actions security into enforced platform controls, Node and pnpm split supply-chain work between patches and evidence, secret scanning became verification, and Google shipped a knowledge envelope for agents.
Enforce Image Trust at Admission, Not by Convention
A CI signature is a claim, not a guarantee that the signed image is the one running in your cluster. Put a deny-by-default, fail-closed check at admission.
Scaling PostgreSQL: Proxies, Extensions and Managed Platforms
A decision guide for scaling PostgreSQL by where each option places the wire-protocol boundary: proxies, sharding extensions and managed elastic platforms.