Ltm

Ltm is a skill for Claude Code, Codex from RohiRIK/OpenLtm. It costs 31 tokens per session (666 once invoked), scanned A, original, MIT.

A contract for using long-term memory tools: recall means retrieve earlier information, learn means store new information, and related actions connect or inspect memories.

In plain words
What is it for?
Use it when starting a project, recalling earlier decisions, storing a new lesson, linking memories, or removing incorrect information.
Why use it?
It gives the agent a consistent way to restore relevant context before work and preserve durable decisions or lessons afterward.

Skill for Claude CodeCodex

Part of the openltm plugin — 10 skills, 6 commands, 3 agents, 3 hooks shipped together

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/rohirik/openltm/ltm
Any agent
npx skills add RohiRIK/OpenLtm --skill ltm
Clone the repo
git clone --depth 1 https://github.com/RohiRIK/OpenLtm

Made for: Claude Code, Codex.

Or install openltm, the plugin that ships this one along with the rest of its 10 skills, 6 commands, 3 agents, 3 hooks.

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 Ltm

README.md
[![agentmods](https://agentmods.dev/badge/skills/rohirik/openltm/ltm.svg)](https://agentmods.dev/skills/rohirik/openltm/ltm)
Your own site
<a href="https://agentmods.dev/skills/rohirik/openltm/ltm"><img src="https://agentmods.dev/badge/skills/rohirik/openltm/ltm.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 666 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 $0.00031 $0.00666
Opus 5 $0.00015 $0.00333
Sonnet 5 $0.00006 $0.00133
Haiku 4.5 $0.00003 $0.00067

Measured 5d ago against content hash 7f9b9e0bed05, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

Ltm 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 5d 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.

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.

skills/Ltm/SKILL.md · 51 lines

How it starts

The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LTM — Memory Contract

Single source of truth for talking to long-term memory. Load it whenever you touch memory so tool names and the recall-before / learn-after ritual stay consistent.

Tools

Plugin ltm, server key memory. In Claude Code each is called as mcp__plugin_openltm_memory__<name>.

Tool Call when
recall Before any non-trivial task — surface prior decisions, gotchas, patterns.
learn After a durable pattern, gotcha, or decision.
context Session start / project switch — restore goals, decisions, gotchas.
context_items List one type (goal, decision, progress, gotcha) for a project.
graph Trace decision chains — pass seed IDs from recall to see the "why".
relate Link two memories (supports, contradicts, refines, depends_on, related_to, supersedes).
forget Remove a wrong or outdated memory.
admin_audit Inspect a memory's provenance / audit trail.

ltm_recall / ltm_learn belong to the OpenCode and Pi adapters — not the Claude server. On Claude, use the short names above.

Ritual

  1. Recall beforerecall with natural language (FTS5 + semantic fallback), not bare keywords. Project restore → context.
  2. Trace — for decisions with history, graph from the top recall hits.
  3. Work — grounded in what recall returned.
  4. Learn afterlearn durable insights; relate to connect them.

Categories

learn takes one: preference (conventions/style) · architecture (design decisions) · gotcha (pitfalls) · pattern (reusable solutions) · workflow (process) · constraint (must-follow rules).

Phase Map

Phase Before During After
Spec recall · context explore code learn · relate
Plan recall (main thread) graph chains; optional reasoning API* relate

* Planner has no MCP tools — main thread recalls and injects a ### Pre-Plan Context block. Richer chains when the reasoning server runs: GET http://localhost:7331/api/reasoning/search?q=<topic>&depth=2.

Read the full file on GitHub · 51 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. 5d ago First seen · 51 lines · 31 tokens per session scan A 7f9b9e0bed05

Subscribe to this mod's changes

Ltm is a skill published in the GitHub repository RohiRIK/OpenLtm (26 stars, last pushed 4d ago), licensed MIT. It adds 31 tokens to every session and 666 once invoked, about $0.0002 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 2026-08-30.

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