codebeacon: Instructions file for Codex

AGENTS.md

codebeacon AGENTS.md is an instructions file for Codex, OpenCode from Wandererer/codebeacon. It costs 539 tokens per session, scanned A, original, MIT.

A set of instructions for finding information in a code repository with a pre-built Codebeacon index, Obsidian notes, and the source files. It describes a three-step lookup path for routes, classes, services, and data models.

In plain words
What is it for?
Use it when investigating the Codebeacon project, especially when tracing API routes, controllers, services, entities, methods, or relationships.
Why use it?
It gives agents a shared way to locate relevant code instead of searching the repository inconsistently. This helps them move from high-level documentation to detailed notes and then to the actual implementation.

Instructions file for CodexOpenCode

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

This is Wandererer/codebeacon's own configuration. It tells Codex and OpenCode how to work on codebeacon 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 codebeacon configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Wandererer/codebeacon. 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/Wandererer/codebeacon/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Wandererer/codebeacon

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 codebeacon AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/wandererer/codebeacon/agents-md/github.svg)](https://agentmods.dev/instructions/wandererer/codebeacon/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/wandererer/codebeacon/agents-md"><img src="https://agentmods.dev/badge/instructions/wandererer/codebeacon/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 codebeacon AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/wandererer/codebeacon/agents-md"><img src="https://agentmods.dev/badge/instructions/wandererer/codebeacon/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 539 This file is loaded in full into every session.
When invoked 539 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 $0.00539 $0.00539
Opus 5.5 $0.00216 $0.00216
Sonnet 5.5 $0.00108 $0.00108
Haiku 4.5 $0.00054 $0.00054

Measured 1mo ago against content hash 90e604ae4a5c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codebeacon 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 1mo 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 · 75 lines

What it actually says

AGENTS.md

Lookup strategy

A pre-built index lives in .codebeacon/. Follow the 3-step lookup below so parallel agents converge on the same answer.

Repo type: single — Single-project repo.

Step 1 — codebeacon wiki

Routes, controllers, services, entities.

.codebeacon/wiki/index.md                    ← global index
.codebeacon/wiki/{project}/controllers/{Name}.md  ← controller logic
.codebeacon/wiki/{project}/services/{Name}.md     ← service methods
.codebeacon/wiki/{project}/entities/{Name}.md     ← data models
.codebeacon/wiki/routes.md                   ← all API routes across projects

Step 2 — obsidian notes

Class-level detail (methods, fields, incoming/outgoing edges) the wiki omits. Look up by class name — replace {project} with the relevant folder:

.codebeacon/obsidian/{project}/{ClassName}.md
Project Notes Example
codebeacon 413 services, 3 entities affected_from_paths.py.md

Step 3 — source file

Open the paths surfaced by Steps 1–2.


Projects

Project Framework Routes Services Entities Components
codebeacon python 5 413 3 0

Common Commands

codebeacon (python)

# see project README  # build
# see project README  # run
# see project README  # all tests

Architecture

codebeacon: python · python Routes: 5 | Services: 413 | Entities: 3 | Components: 0

High-Impact Files

Changes here affect many other files:

  • codebeacon/common/safety.py (imported by 9 files)
  • codebeacon/discover/detector.py (imported by 6 files)
  • codebeacon/wiki/generator.py (imported by 6 files)
  • codebeacon/affected.py (imported by 5 files)
  • codebeacon/common/symbols.py (imported by 5 files)

Generated by codebeacon · 2026-06-11

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. 1mo ago First seen · 75 lines · 539 tokens per session scan A 90e604ae4a5c

Subscribe to this mod's changes

codebeacon AGENTS.md is an instructions file published in the GitHub repository Wandererer/codebeacon (2 stars, last pushed 13d ago), licensed MIT. It adds 539 tokens to every session, about $0.0022 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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