Use cases
Engineering & SRE

Who owns this service and what should I know?

Owner, on-call rotation, last three incidents, recent design decisions — all in one card.

Best for
New-engineer onboarding
Primitives
  • Value Objects
  • Actors
  • Decisions
Side by side

Token Usage, with and without Sentra

~27k tokens saved45% less work for the agent

Without Sentra
~60k tokens
With Sentra
~33k tokens
Claude (without Sentra)
  1. Search GitHub CODEOWNERS for the service path. Cross-reference with the active PR reviewers.
  2. Pull PagerDuty service mapping for the current on-call rotation.
  3. Search Slack for ownership posts ('I own X', 'I'm taking over Y') over the last 6 months.
  4. Pull the three most recent incidents from PagerDuty. Read post-mortems for root cause summaries.
  5. Search for design docs and ADRs touching the service. Read each to extract decisions.
  6. Compose the onboarding card.
~60k tokens
Claude + Sentra
  1. Resolve the service as a Value Object — joined across repo, CODEOWNERS, PagerDuty, observability, and Slack ownership posts.
  2. Current Actor owner(s) and on-call rotation are typed.
  3. Pull the three most recent linked Incidents with extracted root cause.
  4. Pull the five most recent Decisions about the service with Rationale.
  5. Open issues / TODOs Sentra has seen in the last 30 days are surfaced.
  6. Compose the card.
~33k tokens
Agent prompt
You are briefing a new engineer about to touch {{service_name}}.

Using Sentra:

1. Resolve {{service_name}} as a Value Object — map across GitHub repo, CODEOWNERS, PagerDuty service, observability dashboards, and any Slack ownership posts.
2. Identify the current owner(s) and the on-call rotation.
3. Pull the three most recent incidents and a one-line root cause for each.
4. Pull the five most recent Decisions about this service with their Rationale.
5. List the five most-mentioned open issues / TODOs Sentra has seen in the last 30 days.

Output a single onboarding card, no longer than one page, that an engineer can read before opening their first PR.
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