Borrowing it
Nothing to install: this file belongs to lossless-group/lossless-agent-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/lossless-group/lossless-agent-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/lossless-group/lossless-agent-skillsWrote 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/instructions/lossless-group/lossless-agent-skills/claude-md)<a href="https://agentmods.dev/instructions/lossless-group/lossless-agent-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/lossless-group/lossless-agent-skills/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/lossless-group/lossless-agent-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/lossless-group/lossless-agent-skills/claude-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.01125 | $0.01125 |
| Opus 5 | $0.00562 | $0.00562 |
| Sonnet 5 | $0.00225 | $0.00225 |
| Haiku 4.5 | $0.00112 | $0.00112 |
Grade B, and why
lossless-agent-skills CLAUDE.md scanned grade B with 1 finding 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 10d 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.
Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
`find ~/.claude/skills -maxdepth 1 -xtype l`. How it starts
The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent instructions for lossless-agent-skills
This repo is the shared skill library for The Lossless Group — one directory per
skill, each with a top-level SKILL.md following the
Agent Skills spec. It is public, and it is
mounted into the anchor pseudomonorepo at context-v/skills/.
Symlink sync — opening & closing habit
Claude Code only discovers a skill when it has its own direct-child symlink at
~/.claude/skills/<name>. A symlinked parent directory does not expose the skills
nested inside it, so an authored-but-unlinked skill is invisible to every session.
bash ./sync-skills-symlinks.sh
Run it at session start (picks up skills added since last session) and again after authoring or editing any skill — newly-linked skills load in the next session, not the current one. Idempotent; never clobbers a non-symlink.
Two things that break discovery and are easy to miss:
- The directory name must match the skill's frontmatter
name:. A mismatch loads the skill without its description, so it never triggers. - Renaming a skill directory leaves a broken symlink behind. The sync script adds
the new link but does not remove the stale one. Check with
find ~/.claude/skills -maxdepth 1 -xtype l.
Public skills, private config
Skills here are published. Operator-specific particulars — firm names, workspace URLs,
key relationships — live in a gitignored <skill>/config/private.json, documented by a
committed config/private.example.json, and are read at runtime by instruction rather
than by templating. lossless-crm-interface-guidelines/ is the reference
implementation. Full pattern, including the pre-push audit grep, is in README.md.
Never inline a config value back into a SKILL.md. The moment a firm name or an
instance URL lands in the public file, the skill has stopped being publishable.
Vendored upstream submodules — do not overlay them
chroma-agent-skills/ is pinned from chroma-core/agent-skills.
We have READ permission only. Anything committed inside it can never be pushed, and
a local commit there would leave this repo's gitlink pointing at a SHA that exists on no
remote — the loss scenario the pseudomonorepos HARD STOP guards against.
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.
- 10d ago First seen · 83 lines · 1,125 tokens per session scan B e6f69024b39d
lossless-agent-skills CLAUDE.md is an instructions file published in the GitHub repository lossless-group/lossless-agent-skills (4 stars, last pushed 17d ago), licensed MIT. It adds 1,125 tokens to every session, about $0.0056 per session on Opus 5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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