siem-operations SKILL.md skillA

siem-operations from miosa-osa/osa is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add miosa-osa/osa/siem-operations@v1.0.200

Pins v1.0.200 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
miosa-osa/osa
Path
priv/skills/siem-operations/SKILL.md
Versions recorded
1
Latest version
v1.0.200, committed Sep 14, 2026
Size
2,161 bytes
Repository stars
78
License
Apache-2.0

Validate SIEM ingestion, parsing, alert routing and retention with synthetic canaries and timestamp evidence. Use for SIEM operations, missing events, alert pipeline outages, duplicate events or detection delivery checks.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Siem Operations

## Workflow

1. Map producer, collector, parser, index, query, alert and destination; identify which stages are actually accessible.
2. Record expected volume, source coverage and ingestion delay. Read the synthetic canary workflow.
3. Test a harmless uniquely identified event through the authorized test pipeline and trace every stage.
4. Compare event time with receipt time; inspect parse failures, deduplication, rate limits and clock skew.
5. Run one alerting fixture and one benign control, preserving query version and delivery receipt. A search hit does not prove alert delivery.
6. Roll back changed rules/pipelines on regressions; distinguish restored ingestion from recovered historical gaps.

## Worked example and prerequisites

Read [references/workflow.md](references/workflow.md) before execution. Use only registered OSA tools named in the frontmatter; command examples run through `shell_execute`. Check `command -v` for each external executable on the actual target. Optional packages, external collectors and vendor accounts are not bundled or presumed installed.

## Evidence and completion
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add miosa-osa/osa/siem-operations@sha256:526ecfbcfe80241b

The line at the top of this page pins the label v1.0.200, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_okjy2tvtfffmnr3s.svg)](https://markdownregistry.com/a/art_okjy2tvtfffmnr3s)

7 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 14, 2026.

versioncommittedcommitsizeaudit
v1.0.200 latest2026-09-14 92db90a 2,161 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2161 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

miosa-osa/osa · 78 stars · license Apache-2.0 · pushed 2026-10-29 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_okjy2tvtfffmnr3s
GET https://markdownregistry.com/api/v1/resolve?ref=miosa-osa/osa/siem-operations
GET https://markdownregistry.com/api/v1/blob/526ecfbcfe80241be5c581d72554a8a5259f82ebd6d47c22a07771cdee1e6ef3

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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