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sentinel

AdityaPagare619/sentinel

SRE page-or-suppress triage middleware with Jev decision gate.

Automated README summary

Automatically summarized from the README on 7 Oct 2026; not a run by jevbooks. Run instructions and author-reported outcomes still need verification.

What it is

Sentinel is a drop-in pre-page gate for PagerDuty/Opsgenie. It triages every alert with a decision model, suppresses high-confidence noise, and pages uncertain alerts as before. For SRE teams.

How it uses Jev

Jev answers three parallel questions per alert: severity, owning team, and disposition action. The gate uses these probabilities in an expected-cost policy to decide page, queue, suppress, or passthrough. Suppression requires a triple lock: probability bar, confidence bar, and customer-verified allowlist.

Primitives:choice

Technique worth stealing

Triple lock: probability bar + confidence bar + allowlist before any suppression.

Try it

Set TYPESAFE_API_KEY, PD_ROUTING_KEY, SENTINEL_WEBHOOK_SECRET; run PYTHONPATH=src python3 -m sentinel.receiver --port 8080.

View on GitHub

Start using Jev: API key and your first request →

Model judgments from README excerpts

Project signals use repository metadata, an existing summary and the first 700 README characters, not the full project. “Not found” means not detected in that material; it does not establish absence. These are the original judgments with recorded models and dates, not source audits or run results.

Models & evaluation dates

Inclusion gate
jev-1.13.0
Project signals
jev-1.13.0
Category
jev-1.13.0
Pattern tags
jev-1.13.0

Evidence

These signals use repository metadata, an existing summary and at most 700 cleaned README characters. ≥ 0.60 means reported in that excerpt; ≤ 0.40 means not found there. The middle band is inconclusive. None is a source-code audit or a test result. The runnable-tool question excludes research experiments; the recommendation question asks for a learning shortlist, not a quality verdict.

  • Jev is core to the projectFound in material0.95
  • Shows a System One patternFound in material0.84
  • Describes handling uncertaintyFound in material0.93
  • Reports measured numbersFound in material0.74
  • Is a runnable toolFound in material0.84
  • Top-10 learning shortlist signalunclear0.46
  • Is a replica of the modelnot found in the excerpt0.10
  • Solves a common problem (0–2)score on a 0–2 scale1.77 / 2
  • About JevFound in material0.98
Signals
Jev is core to the project0.95Shows a System One pattern0.84Describes handling uncertainty0.93Reports measured numbers0.74Is a runnable tool0.84Top-10 learning shortlist signal0.46Is a replica of the model0.1000.51Solves a common problem (0–2)1.77 / 2012

no-judgment band (0.40–0.60)

Design patterns
Funnel0.95Fail open, fail closed0.91Questionnaire0.88Traffic light0.87Flight recorder0.67Scorecard0.54Check-up0.37Prefetch0.33Grey zone0.32Thermostat0.2700.51

no-judgment band (0.40–0.60)

The Jev model and date for each judgment stage are listed above. Card written by DeepSeek V4.1 Flash from the README on 7 Oct 2026.