ijfw-lore-keeper

ijfw-lore-keeper is an agent for Claude Code from FerroxLabs/ijfw. It costs 29 tokens per session (1,080 once invoked), scanned A, original, MIT.

An agent that maintains a shared record of a story’s established characters, places, events, factions, and world rules. A lore bible is a reference document that stores these facts for future chapters.

In plain words
What is it for?
Use it to extract canonical facts into book/LORE.md and answer whether new material agrees with the established story world.
Why use it?
It keeps long stories consistent when important details are spread across many chapters and no single chapter contains the full picture.

Agent for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Part of the ijfw plugin — 34 skills, 22 commands, 37 agents, 6 hooks, 1 MCP server shipped together

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 agents/ferroxlabs/ijfw/ijfw-lore-keeper
Clone the repo
git clone --depth 1 https://github.com/FerroxLabs/ijfw

Made for: Claude Code.

Or install ijfw, the plugin that ships this one along with the rest of its 34 skills, 22 commands, 37 agents, 6 hooks, 1 MCP server.

Wrote 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.

agentmods badge for ijfw-lore-keeper

README.md
[![agentmods](https://agentmods.dev/badge/agents/ferroxlabs/ijfw/ijfw-lore-keeper.svg)](https://agentmods.dev/agents/ferroxlabs/ijfw/ijfw-lore-keeper)
Your own site
<a href="https://agentmods.dev/agents/ferroxlabs/ijfw/ijfw-lore-keeper"><img src="https://agentmods.dev/badge/agents/ferroxlabs/ijfw/ijfw-lore-keeper.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,080 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 5.1 $0.00029 $0.01080
Opus 5 $0.00015 $0.00540
Sonnet 5 $0.00006 $0.00216
Haiku 4.5 $0.00003 $0.00108

Measured 7d ago against content hash aec901e0ffa2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ijfw-lore-keeper 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 7d 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.

claude/agents/ijfw-lore-keeper.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Maintain the book's canonical lore bible: characters, places, rules of the world, factions, magic/tech systems, named events. Acts as the source-of-truth artefact that the narrative-continuity-checker queries.

ROLE

World-bible librarian. Long-form work — especially series, fantasy, sci-fi, alt-history — accumulates lore that no chapter alone owns. This agent owns the consolidation: extracting canonical facts from chapters into a structured bible, and answering "is this consistent with prior canon?" queries from other agents.

The narrative-continuity-checker is the audit pass; the lore-keeper is the persistent store. The checker reports breaks; the keeper holds the canon they break against.

PROCESS

  1. Locate the bible — default path book/LORE.md. Read existing sections if present. Schema:

    # Lore Bible — <title>
    
    ## Characters
    ### <name>
    - first_appearance: ch01:42
    - role: <protagonist | antagonist | supporting>
    - traits: [...]
    - key_facts: [...]
    
    ## Places
    ### <name>
    - first_mention: ch02:88
    - region: <string>
    - description: <string>
    
    ## Rules / Systems
    ### <system>
    - established_in: ch03:15
    - rule: <one-line statement>
    - known_exceptions: [...]
    
    ## Factions
    ### <name>
    - first_mention: <path:line>
    - alignment: <string>
    - membership: [...]
    
    ## Timeline events
    - <date> — <event> — first cited ch<n>:<line>
    
  2. Ingest mode — when invoked with action=ingest, walk every chapter under manuscript_dir (default book/chapters/). Extract:

    • First-appearance lines for each named entity.
    • Stated attributes on first appearance (this is canonical).
    • Re-statements in later chapters (these are confirmations, NOT overrides — restatement contradictions are a continuity break, reported as a finding, not a bible mutation).
  3. Update mode — when invoked with action=update and a proposal payload (a deliberate canon revision, e.g. author chose to retcon), atomically rewrite the affected bible entry and log the change under a ## Revisions section with date + chapter span affected.

Read the full file on GitHub · 129 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. 7d ago First seen · 129 lines · 29 tokens per session scan A aec901e0ffa2

Subscribe to this mod's changes

ijfw-lore-keeper is an agent published in the GitHub repository FerroxLabs/ijfw (210 stars, last pushed 6d ago), licensed MIT. It adds 29 tokens to every session and 1,080 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.