sfos-splunk-obs

sfos-splunk-obs is a skill for Claude Code from alex-jb/solo-founder-os. It costs 136 tokens per session (1,285 once invoked), scanned A, original, MIT.

A Splunk monitoring adapter for solo-founder-os, a group of scheduled AI agents that run jobs over time. Splunk is a system for collecting and displaying operational logs and measurements.

In plain words
What is it for?
Use it with solo-founder-os agents running on cron or launchd to track outcomes, evaluation drift and bandit regret, then view them in a six-panel Splunk dashboard.
Why use it?
It makes long-running agents easier to monitor by sending their results, evaluation changes and decision-making losses to the same place as other logs.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it with solo-founder-os agents running on cron or launchd to track outcomes, evaluation drift and bandit regret, then view them in a six-panel Splunk dashboard.

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Install with agentmods
npx agentmods add skills/alex-jb/solo-founder-os/sfos-splunk-obs
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add alex-jb/solo-founder-os --skill sfos-splunk-obs
Clone the repo
git clone --depth 1 https://github.com/alex-jb/solo-founder-os

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for sfos-splunk-obs

README.md
[![agentmods](https://agentmods.dev/badge/skills/alex-jb/solo-founder-os/sfos-splunk-obs/github.svg)](https://agentmods.dev/skills/alex-jb/solo-founder-os/sfos-splunk-obs)
Your own site
<a href="https://agentmods.dev/skills/alex-jb/solo-founder-os/sfos-splunk-obs"><img src="https://agentmods.dev/badge/skills/alex-jb/solo-founder-os/sfos-splunk-obs/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for sfos-splunk-obs

Your own site · 80×15
<a href="https://agentmods.dev/skills/alex-jb/solo-founder-os/sfos-splunk-obs"><img src="https://agentmods.dev/badge/skills/alex-jb/solo-founder-os/sfos-splunk-obs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 136 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,285 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00136 $0.01285
Opus 5 $0.00068 $0.00642
Sonnet 5 $0.00027 $0.00257
Haiku 4.5 $0.00014 $0.00128

Measured 12d ago against content hash 6d30533784ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

sfos-splunk-obs scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

description: Ship reflections, eval drift, and bandit regret from the solo-founder-os 11-agent stack into Splunk over HEC. Five-minute install, zero new Python deps (stdlib urllib + json + sqlite3), six-panel dashboard y
skills/sfos-splunk-obs/SKILL.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sfos-splunk-obs

Splunk adapter for solo-founder-os — the 11-agent autonomous stack a single founder uses to run a company.

LangSmith and Phoenix are designed for synchronous request-response agents. SFOS-obs is for the other shape: long-running cron-scheduled file-based agents that reflect on themselves and learn. This skill emits the three streams that matter — agent outcomes, eval drift, bandit regret — into Splunk over HEC.

When to use this skill

Invoke this skill whenever the user:

  • Runs solo-founder-os (or any SFOS agent) on cron / launchd and wants observability
  • Asks "are my agents learning or just running"
  • Reports a skill quietly regressing on its own eval set
  • Wants to see bandit regret per marketing arm
  • Wants the SFOS reflections / evals / bandit streams to land in the same Splunk index as their server logs
  • Sets up dashboards for SFOS — import dashboard.xml and the six panels populate within one sweep

Do NOT invoke for short-lived synchronous agent observability (LangSmith / Phoenix fit that shape better), for hosted SaaS APM (Datadog / HyperDX), or when the user does not already have a Splunk Cloud / Enterprise stack.

Three streams, three sourcetypes

Sourcetype Source What it answers
sfos:reflection ~/.<agent>/reflections.jsonl What did each agent try to do, and did it work?
sfos:eval ~/.solo-founder-os/evals/*.json Is any skill silently regressing?
sfos:bandit ~/.marketing_agent/history.db Which marketing arms is the bandit learning are best?

Five-minute install

  1. Sign up for Splunk Cloud free tier and enable an HEC token (Settings → Data Inputs → HTTP Event Collector → New Token, sourcetypes sfos:reflection, sfos:eval, sfos:bandit).

  2. Set two env vars:

    export SPLUNK_HEC_URL="https://<your-stack>.splunkcloud.com:8088"
    export SPLUNK_HEC_TOKEN="<paste-token>"
    
  3. Run one sweep to verify connectivity:

Read the full file on GitHub · 88 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 88 lines · 136 tokens per session scan A 6d30533784ef

Subscribe to this mod's changes

sfos-splunk-obs is a skill published in the GitHub repository alex-jb/solo-founder-os (11 stars, last pushed 2mo ago), licensed MIT. It adds 136 tokens to every session and 1,285 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.