ob1-local-http

A way to save and search thoughts in a self-hosted Open Brain using ordinary HTTPS, without using MCP transport.

In plain words
What is it for?
It is for capturing thoughts and searching stored notes through a reachable local Open Brain service.
Why use it?
It provides a route to the personal knowledge system when MCP is unavailable or remote network access is blocked.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/natebjones-projects/ob1/ob1-local-http
Any agent
npx skills add NateBJones-Projects/OB1 --skill ob1-local-http
Clone the repo
git clone --depth 1 https://github.com/NateBJones-Projects/OB1

Made for: Claude Code, Codex.

Per session 124 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,224 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown 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 $0.00124 $0.01224
Opus 5 $0.00062 $0.00612
Sonnet 5 $0.00025 $0.00245
Haiku 4.5 $0.00012 $0.00122

Measured 2d ago against content hash daacbe0d41a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ob1-local-http 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 2d 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.

not available. This skill replaces it with `curl` calls to a LAN-resident
skills/ob1-local-http/SKILL.md · 128 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2d ago First seen · 128 lines · 124 tokens per session scan A daacbe0d41a5

Subscribe to this mod's changes

ob1-local-http is a skill published in the GitHub repository NateBJones-Projects/OB1 (4,523 stars, last pushed 2d ago), with no licence file. It adds 124 tokens to every session and 1,224 once invoked, about $0.0006 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.

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