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.
npx agentmods add skills/lossless-claude/lcm/skillnpx skills add lossless-claude/lcm --skill skillgit clone --depth 1 https://github.com/lossless-claude/lcmWrote 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.
[](https://agentmods.dev/skills/lossless-claude/lcm/skill)<a href="https://agentmods.dev/skills/lossless-claude/lcm/skill"><img src="https://agentmods.dev/badge/skills/lossless-claude/lcm/skill.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00016 | $0.00496 |
| Opus 5 | $0.00008 | $0.00248 |
| Sonnet 5 | $0.00003 | $0.00099 |
| Haiku 4.5 | $0.00002 | $0.00050 |
Grade A, and why
lcm-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 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.
This is a copy
100% identical to lcm-memory — 1 line 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.
What it actually says
Lossless Context Management
Before responding to code tasks, check memory first. Code task? →
lcm searchFIRST. Completed work? →lcm storeBEFORE done.
You have access to a persistent memory system that survives across conversations.
Workflow
Code task received → lcm search FIRST → Work → lcm store → Done
Non-code task → Just respond normally
Commands
1. Search Memory
Retrieve relevant context before starting work.
lcm search "How is authentication implemented?"
2. Grep Memory
Regex pattern search for precise matches.
lcm grep "createDaemon|startMcpServer" --mode regex
3. Describe Memory
Inspect a specific node returned by search or grep.
lcm describe sum_abc123def456
4. Expand Memory
Recover lower-level detail from a summary node.
lcm expand sum_abc123def456 --depth 2
5. Store Knowledge
Persist important knowledge after completing work.
lcm store "Auth middleware uses JWT with 24h expiry. See src/middleware/auth.ts"
6. Stats
Show token savings and compression ratios.
lcm stats
Decision Table
| Task Type | Search? | Store? |
|---|---|---|
| Add/create/implement feature | MUST | MUST |
| Fix/debug/resolve bug | MUST | MUST |
| Refactor/optimize/move code | MUST | MUST |
| Write/add tests | MUST | MUST |
| "How does X work?" (codebase) | MUST | Only if insights |
| General concept question | NO | NO |
| Meta task (run tests, build) | NO | NO |
| Git task (commit, PR, push) | NO | NO |
Error Handling
- If
lcmis not found: runnpm install -g @lossless-claude/lcm - If daemon is down: run
lcm daemon start --detach - If search returns nothing: memory may be empty — proceed normally
- Check status:
lcm doctor
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.
- 5d ago First seen · 75 lines · 16 tokens per session scan A 78596dc5d539
lcm-memory is a skill published in the GitHub repository lossless-claude/lcm (24 stars, last pushed yesterday), licensed MIT. It adds 16 tokens to every session and 496 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 lcm-memory, differing in 1 line, and is treated as a copy.
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../../../engineering/agent-memory/skills/agent-memory/SKILL.md.
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