loci

loci is a skill for Claude Code, Codex from 3M1RY33T/loci. It costs 103 tokens per session (2,087 once invoked), scanned A, original, MIT.

A project-memory tool that records how registered code projects work, why decisions were made, and whether similar problems were solved before.

In plain words
What is it for?
Use it to ask how a project works, search past solutions across projects, refresh stored project information, inspect coverage, or register a project.
Why use it?
It reduces repeated investigation when you return to a project or need to recall an earlier solution.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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/3m1ry33t/loci/skill
Any agent
npx skills add 3M1RY33T/loci --skill skill
Clone the repo
git clone --depth 1 https://github.com/3M1RY33T/loci

Made for: Claude Code, Codex.

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 loci

README.md
[![agentmods](https://agentmods.dev/badge/skills/3m1ry33t/loci/skill.svg)](https://agentmods.dev/skills/3m1ry33t/loci/skill)
Your own site
<a href="https://agentmods.dev/skills/3m1ry33t/loci/skill"><img src="https://agentmods.dev/badge/skills/3m1ry33t/loci/skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 103 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,087 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00103 $0.02087
Opus 5 $0.00051 $0.01043
Sonnet 5 $0.00021 $0.00417
Haiku 4.5 $0.00010 $0.00209

Measured today against content hash c228cee0f4d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

loci scanned grade A with 0 findings 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 today.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

src/loci/skill/SKILL.md · 172 lines

How it starts

The opening of the file, as written. The whole thing — 172 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/loci

Scoped memory for coding agents. A router in front of two stores: a structure store (what calls what, with file:line citations) and an episode store (what happened and why — READMEs, docs, commit bodies, comment blocks). One question path serves "how does auth work here" and "have I solved this in any project"; only the size of the scope set changes.

Two properties shape everything below. Scopes are never merged — a question is routed to at most three projects and each is searched alone. Both layers can refuse — the router can decline to pick a project, and a project it picked can hand back nothing. A refusal is an answer.

Usage

/loci "<question>"          ask memory; routes on your working directory
/loci update                refresh everything registered
/loci update <root>         ...and scan there for projects added since
/loci doctor                coverage gaps per project, and the fix for each
/loci scopes                what is registered, and the group each is in
/loci route "<question>"    where a question routes, and why it abstained
/loci add <path>            register one project (`/loci add .` for this repo)
/loci setup [dirs…]         first run: scan, graph, index, embed, calibrate
/loci <anything else>       passed through to the `loci` CLI verbatim

What to do when invoked

If the user typed /loci --help or /loci -h with nothing else, print the Usage block above verbatim and stop.

If command -v loci finds nothing, say so once and stop: the fix is pipx install 'loci-mem[all]', and no subcommand can work without it.

Then dispatch on the first word. A first word that is not a subcommand below and not a flag is a question — send it to ask, do not treat it as a path. Anything that names a real loci subcommand not documented here (index, embed, graphs, calibrate, eval, groups, group, scan, mcp) is passed through unchanged.

Prefer the MCP server when it is connected. If tools named ask, scopes and doctor are available from a loci MCP server, call those instead of shelling out, and pass cwd explicitly — the server holds the embedding model and the largest projects' rankers in memory, so a call costs ~0.1s against the ~4.4s a cold CLI invocation pays in imports and model construction. Everything else (update, route, add, setup) has no tool; use the CLI.

Read the full file on GitHub · 172 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. today Changed · +2 lines c228cee0f4d2
  2. 5d ago First seen · 170 lines · 103 tokens per session scan A d1832f8ca6c1

Subscribe to this mod's changes

loci is a skill published in the GitHub repository 3M1RY33T/loci (1 stars, last pushed today), licensed MIT. It adds 103 tokens to every session and 2,087 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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