mind-forge: Instructions file for Codex

AGENTS.md

mind-forge AGENTS.md is an instructions file for Codex, OpenCode from goncalompontes/mind-forge. It costs 1,247 tokens per session, scanned A, original, MIT.

Repository instructions for Mind Forge, an OpenCode plugin for managing documents and turning them into searchable knowledge.

In plain words
What is it for?
Guiding work on document ingestion, querying, and generation for PDFs, DOCX files, Markdown, images, and web URLs.
Why use it?
They record architecture and implementation decisions so future changes stay consistent with the project’s design.

Instructions file for CodexOpenCode

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

This is goncalompontes/mind-forge's own configuration. It tells Codex and OpenCode how to work on mind-forge 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 mind-forge configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/pontes/projects/mind-forge/.

Reuse

Borrowing it

Nothing to install: this file belongs to goncalompontes/mind-forge. 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/goncalompontes/mind-forge/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/goncalompontes/mind-forge

Made for: Codex, OpenCode.

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Per session 1,247 This file is loaded in full into every session.
When invoked 1,247 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 $0.01247 $0.01247
Opus 5.5 $0.00499 $0.00499
Sonnet 5.5 $0.00249 $0.00249
Haiku 4.5 $0.00125 $0.00125

Measured 2mo ago against content hash a21a5131db18, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mind-forge 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 · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mind Forge — Architecture Decisions

Plugin: OpenCode plugin for document-based knowledge management
Status: MVP implemented
Date: 2026-06-28

Design Decisions (from Phase 4 Discussion)

D-01: Architecture — OpenCode plugin (separate from FlowDeck).

  • Rationale: FlowDeck is a CLI-only AI coding workflow orchestrator; adding document processing, vector storage, and study tools would violate its single-responsibility boundary.
  • Implementation: Standalone project at /home/pontes/projects/mind-forge/ with its own package.json, tsconfig, and plugin entry point.

D-02: Interface Modality — MCP tools (ingest, query, generate) auto-invoked by the LLM.

  • Rationale: NotebookLM-like workflow is conversational — user says "summarize this PDF" and the LLM calls the tool automatically. No slash commands needed.
  • Implementation: @modelcontextprotocol/sdk with StdioServerTransport. 3 tools registered with JSON Schema input schemas.

D-03: Source Formats (MVP) — All: PDF, DOCX, Markdown, images (OCR), web URLs.

  • Rationale: User wants full format support from the start.
  • Implementation: 5 extractors in src/extract/ with auto-detection via file extension + URL pattern. Uses pdf-parse/pdftotext, mammoth, native read, tesseract.js, and @mozilla/readability.

D-04: Embedding Approach — Local Ollama preferred (conditional ≤8GB RAM), fallback to LLM provider.

  • Rationale: Ollama carries zero recurring cost and keeps data on-device. Abstraction layer allows future provider swaps.
  • Implementation: EmbeddingProvider interface in src/types.ts, factory in src/embed/provider.ts. Ollama adapter via ollama npm package, LLM adapter via OpenAI-compatible API.

D-05: Vector Storage — SQLite + sqlite-vec.

  • Rationale: Single-user plugin needs no client-server vector DB. SQLite is zero-dependency, single-file, easy to back up.
  • Implementation: better-sqlite3 with sqlite-vec extension. 768-dimension fixed (nomic-embed-text default). ANN search via sqlite-vec virtual table.

Read the full file on GitHub · 65 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 · 65 lines · 1,247 tokens per session scan A a21a5131db18

Subscribe to this mod's changes

mind-forge AGENTS.md is an instructions file published in the GitHub repository goncalompontes/mind-forge (0 stars, last pushed 4mo ago), licensed MIT. It adds 1,247 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.

Related

mind-forge AGENTS.md compared with instructions from other repositories

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