docs: clarify seize integrator guidance (base-std@868d513)

[github-actions]

Source PR: base/base-std#205 — docs(changelog): clarify seize integrator guidance

Merge commit: 868d513

Auto-generated from the source PR above.

Reviewer checklist

Before merging, confirm each item below. The validator catches structural problems (raw HTML, dangerous URLs, secrets); these items need a human eye.

• Anchor text on every new link reads honestly — no click here, no link text that contradicts its target host.
• Every newly introduced external URL (listed below) points to a host you expect to see in Coinbase docs.
• Frontmatter title / description still match the page's role (reference vs. overview vs. conceptual).
• Any <Warning> added describes a real breaking change in the source PR, not a paraphrase the model invented.

Newly introduced external URLs

No new external URLs in this sync.

Files touched

• docs/specifications/b20/changelog.mdx

Source provenance

Each row shows which file(s) in base/base-std@868d513 drove an edit to a docs page. Click into a source file to verify the claim before merging.

Docs page	Source file(s) in base
docs/specifications/b20/changelog.mdx	changelog/02_Cobalt_B20_seize.md

Opened by Apply Base Std Update workflow.

[mintlify]

Preview deployment for your docs. Learn more about Mintlify Previews.

Project	Status	Preview	Updated (UTC)
base	🟢 Ready	View Preview	Sep 1, 2026, 9:45 PM

💡 Tip: Enable Workflows to automatically generate PRs for you.

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/3	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 1 Sum 2