Claude Code mod
lcm
Lossless context management — DAG-based summarization that preserves every message
Install
git clone https://github.com/lossless-claude/lcm.git
claude --plugin-dir ./lcm/.The repo has no marketplace file, so load the plugin folder directly with --plugin-dir.
What it can access
- Reach
- L3Network: network, runs processes, writes files, drives Claude, reads env vars, draws
- Sees
- classic hooks, the system prompt, every prompt, every tool call, compaction
- Hooks
session.startclassic.SessionStartclassic.UserPromptSubmitclassic.PostToolUseclassic.PostToolUseFailureclassic.Stopsession.endprompt.contextprompt.sectionprompt.submitturn.completetool.callsession.appendsession.compact
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- lossless-claude/lcm
- Folder
.- Author
- Pedro Almeida
- Website
- lossless-claude.com
- License
- MIT
- Last updated
- 25 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is lcm?
Lossless context management — DAG-based summarization that preserves every message It is a mod for Claude Code, from lossless-claude/lcm on GitHub.
What can the lcm mod access?
Its widest reach is "network" (network, runs processes, writes files, drives Claude, reads env vars, draws). It sees classic hooks, the system prompt, every prompt, every tool call, compaction. Like any mod, it runs with your permissions.
How do I install lcm?
Clone lossless-claude/lcm and start Claude Code with --plugin-dir pointing at the mod's folder (.).
Is lcm popular?
lossless-claude/lcm has 60 GitHub stars and 0 forks, and is included in 1 curated Claude Code list. It was last updated on 25 October 2026.
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