faulkner-db: Instructions file for Codex

AGENTS.md

faulkner-db AGENTS.md is an instructions file for Codex, OpenCode from Platano78/faulkner-db. It costs 1,249 tokens per session, scanned A, original, MIT.

Project instructions for working on faulkner-db, a service that stores software decisions, patterns, and failures in a searchable knowledge graph.

In plain words
What is it for?
Use them when changing or investigating faulkner-db's MCP tools, server behavior, architecture, or project-specific conventions.
Why use it?
They tell an agent where to look and which project area to load, reducing unnecessary file reading and incorrect routing.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is Platano78/faulkner-db's own configuration. It tells Codex and OpenCode how to work on faulkner-db itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything faulkner-db configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Platano78/faulkner-db. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Platano78/faulkner-db/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Platano78/faulkner-db

Made for: Codex, OpenCode.

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 faulkner-db AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/platano78/faulkner-db/agents-md"><img src="https://agentmods.dev/badge/instructions/platano78/faulkner-db/agents-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.

agentmods 80×15 button for faulkner-db AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/platano78/faulkner-db/agents-md"><img src="https://agentmods.dev/badge/instructions/platano78/faulkner-db/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,249 This file is loaded in full into every session.
When invoked 1,249 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.01249 $0.01249
Opus 5.5 $0.00500 $0.00500
Sonnet 5.5 $0.00250 $0.00250
Haiku 4.5 $0.00125 $0.00125

Measured 2mo ago against content hash 4451c4dea6a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

faulkner-db AGENTS.md 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 2mo 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.

AGENTS.md · 44 lines

How it starts

The opening of the file, as written. The whole thing — 44 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Faulkner DB — AGENTS.md (router / the map)

You are the generic agent. Reading this makes you the Faulkner DB agent. On entry: read this map → route to the area for the task → load ONLY that area's Inputs.

What this is

A temporal knowledge-graph "architectural memory" system exposed as an MCP server: stores Decisions / Patterns / Failures in a graph, does hybrid (graph + vector) search, and runs NetworkX structural analysis (gaps, bridges, communities). Python 3.9–3.12, runs as Docker containers (FalkorDB + Postgres + ChromaDB) on host ai-utility. The live server is mcp_server/server_fastmcp.py (FastMCP, registers all 13 tools). A legacy stdio path (mcp_server/server.py + mcp_server/mcp_tools.py, 7-tool subset) coexists — not the live path.

Areas (route by task — load Inputs, skip the rest)

If the task is about… Read (Inputs) Skip
MCP tools / server behaviour (add_decision, query_decisions, add_pattern, add_failure, find_related, detect_gaps, get_timeline, find_knowledge_gaps, find_influential_patterns, find_knowledge_communities, find_bridge_patterns, get_graph_summary, query_patterns_semantic) mcp_server/server_fastmcp.py (live; thin tool wrappers that delegate to →) mcp_server/mcp_tools.py (shared tool impls + input validation), common/schemas.py (input models: DecisionInput/PatternInput/FailureInput), core/knowledge_types.py (storage models Decision/Pattern/Failure — also validate on construct), mcp_server/utils.py legacy mcp_server/server.py (stdio entrypoint), unused dup mcp_server/schemas.py, root archival *.md
Legacy stdio entrypoint (only when explicitly asked) mcp_server/server.py, mcp_server/mcp_tools.py (TOOL_REGISTRY) the FastMCP server
Graph store / client + data models (FalkorDB adapter) core/graphiti_client.py (FalkorDBAdapter, GraphitiClient, MetricsCollector), core/knowledge_types.py (Decision/Pattern/Failure), core/config_loader.py data/ contents
Hybrid search (graph+vector fusion, reranking) core/hybrid_search.py (reciprocal_rank_fusion, crossencoder_reranker, query_decomposer, extract_temporal) data/embeddings/, data/chroma/ contents
Structural graph analysis (gaps/bridges/communities/influence) core/gap_detector.py (GapDetector, GapType, Severity, GapReport), mcp_server/networkx_analyzer.py search/storage dirs
Ingestion / bulk import (agent-genesis, chromadb extraction) ingestion/ (agent_genesis_*.py, chromadb extractor scripts), mcp_server/ingestion_guards.py ingestion/*.log, ingestion/*_checkpoint.json
Deploy / Docker / infra docker/docker-compose.yml, docker/Dockerfile, docker/redis.conf, config/graphiti_config.yaml, config/mcp_config.json docker/data/, docker/backups/, source dirs
Ops / health / migrations / sync scripts/ (health_check.py, backup-faulkner.sh, migrate_*.py, faulkner-health-graph.{service,timer}) logs/
Tests tests/, comprehensive_mcp_test.py (root) source dirs unless tracing a failure

Read the full file on GitHub · 44 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. 2mo ago First seen · 44 lines · 1,249 tokens per session scan A 4451c4dea6a4

Subscribe to this mod's changes

faulkner-db AGENTS.md is an instructions file published in the GitHub repository Platano78/faulkner-db (4 stars, last pushed 2mo ago), licensed MIT. It adds 1,249 tokens to every session, about $0.0050 per session on Opus 5.5. 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 2026-08-31.

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