lore

A tool for reading, searching, and monitoring lore.kernel.org, the public archive of Linux kernel mailing-list discussions. It retrieves complete email threads and checks tracked submissions for replies.

In plain words
What is it for?
Use it to fetch a thread, search for earlier discussion, check reviewer responses, or scan tracked Linux kernel submissions for updates.
Why use it?
It provides a reliable way to follow kernel patch reviews and previous technical discussions without subscribing to the mailing lists.

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/lexfrei/ccc/lore
Any agent
npx skills add lexfrei/ccc --skill lore
Clone the repo
git clone --depth 1 https://github.com/lexfrei/ccc

Made for: Claude Code, Codex.

Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,062 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00109 $0.01062
Opus 5 $0.00055 $0.00531
Sonnet 5 $0.00022 $0.00212
Haiku 4.5 $0.00011 $0.00106

Measured 2d ago against content hash 15033c144fb8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

lore scanned grade A 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

lore.kernel.org is the public-inbox archive of the kernel lists. Everything below works with plain curl, no subscription and no local mail setup, but the archive sits behind bot protection that keys on the User-Agent.
skills/lkml/skills/lore/SKILL.md · 61 lines

How it starts

The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.

lore.kernel.org is the public-inbox archive of the kernel lists. Everything below works with plain curl, no subscription and no local mail setup, but the archive sits behind bot protection that keys on the User-Agent.

User-Agent: the one thing that breaks everything

Default curl gets HTTP 403; browser-style agents (Mozilla/5.0 ...) get an Anubis JavaScript challenge page instead of content. Send --user-agent "lei/1.0" on every request — it works for mbox, atom, and search endpoints alike.

If a response starts with <!doctype html> and mentions "not a bot", you hit the challenge: fix the User-Agent, do not try to solve or bypass the challenge.

Fetch a whole thread

curl --silent --user-agent "lei/1.0" "https://lore.kernel.org/<list>/<message-id>/t.mbox.gz" | gunzip

<message-id> is bare, without angle brackets. Any message's ID pulls its entire thread — cover letter, patches, and every reply. This mbox is the source of truth for reply headers: take Message-ID:, From:, Cc:, and exact Subject: values from it, never reconstruct them from memory.

The list name in the URL scopes the archive (netdev, linux-kernel, linux-mm, ...); when the list is unknown, https://lore.kernel.org/all/<message-id>/ resolves from the cross-list index and https://lore.kernel.org/r/<message-id>/ is the canonical short form for citing a message in changelogs and Link: tags.

If the b4 tool is installed, b4 mbox <message-id> does the same fetch with retries; the curl form needs no tooling.

Check for new replies without refetching

curl --silent --user-agent "lei/1.0" "https://lore.kernel.org/<list>/<message-id>/t.atom" | grep -oE "<name>[^<]+</name>|<updated>[^<]+</updated>"

Read it as author/timestamp pairs. A new author entry with a fresh timestamp is a new message — fetch the mbox. A bumped <updated> with the same set of authors is lore reindexing the thread, not new mail; do not report it as a reply.

curl --silent --user-agent "lei/1.0" "https://lore.kernel.org/<list>/?q=<url-encoded-query>&x=A"

Read the full file on GitHub · 61 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. 2d ago First seen · 61 lines · 109 tokens per session scan A 15033c144fb8

Subscribe to this mod's changes

lore is a skill published in the GitHub repository lexfrei/ccc (9 stars, last pushed 2d ago), licensed BSD-3-Clause. It adds 109 tokens to every session and 1,062 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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