Memory

A method for saving user-specific behavior and notes in files that are automatically included in later conversations.

In plain words
What is it for?
Use it to record durable behavior changes, temporary reminders, project context, decisions, and other information that should persist.
Why use it?
It prevents important preferences, project facts, and standing instructions from being lost between conversations.

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/binary16labs/prime-silo/memory
Any agent
npx skills add binary16labs/prime-silo --skill memory
Clone the repo
git clone --depth 1 https://github.com/binary16labs/prime-silo

Made for: Claude Code, Codex.

Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 342 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00015 $0.00342
Opus 5 $0.00008 $0.00171
Sonnet 5 $0.00003 $0.00068
Haiku 4.5 $0.00002 $0.00034

Measured 2d ago against content hash b43e81d4d908, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Memory 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 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.

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.

Origin

This is a copy

100% identical to Memory — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

app/L0/_all/mod/_core/memory/ext/skills/memory/SKILL.md · 27 lines

What it actually says

Use prompt-include files as persistent memory.

paths

  • ~/memory/behavior.system.include.md: stable behavior, user preferences, standing instructions, durable workflow rules
  • ~/memory/memories.transient.include.md: rolling notes worth keeping across conversations
  • ~/memory/*.transient.include.md: extra focused memory files when one topic deserves its own evolving note

rules

  • *.system.include.md becomes system-prompt instruction. Use it for slow-changing behavior.
  • *.transient.include.md becomes transient context. Use it for notes, facts, project context, reminders, and other frequently updated memory.
  • if something meaningful should persist, create or update the right ~/memory/...include.md file instead of only acknowledging it in chat.
  • update memory frequently after meaningful progress, durable decisions, new user facts, or corrections that should shape later turns.
  • when the user asks to change how you behave, edit ~/memory/behavior.system.include.md.
  • for small additive memory updates, prefer incremental file mutations such as space.api.fileWrite({ path, content, operation: "append" }) or operation: "insert" over rereading and rewriting the whole memory file. Rewrite the full file only when you need cleanup, dedupe, or structural edits.
  • keep memory concise, specific, and current. Rewrite or delete stale lines instead of piling up duplicates.
  • these files are plain markdown include bodies. Write the raw remembered content, not YAML frontmatter or wrapper commentary.
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 · 27 lines · 15 tokens per session scan A b43e81d4d908

Subscribe to this mod's changes

Memory is a skill published in the GitHub repository binary16labs/prime-silo (5 stars, last pushed 9d ago), licensed MIT. It adds 15 tokens to every session and 342 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to Memory, differing in 2 lines, and is treated as a copy.