DESIGN.md@specs/features/TOO/003-large-filesA

DESIGN.md@specs/features/TOO/003-large-files from dimetron/pi-go is a DESIGN.md file: the design rules coding agents follow in that repo.

Install it, pinned
mdr add dimetron/pi-go/specs/features/TOO/003-large-files/DESIGN.md@git:20260622.ffbb6d5

Pins git:20260622.ffbb6d5 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
DESIGN.md file
Repository
dimetron/pi-go
Path
specs/features/TOO/003-large-files/DESIGN.md
Versions recorded
1
Latest version
git:20260622.ffbb6d5, committed Jun 22, 2026
Size
21,451 bytes
Repository stars
214
License
MIT

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Iterative Chunked-Read Summarization Harness

**Status:** Draft / Research
**Date:** 2026-04-18
**Owner:** dimetron
**Track:** `specs/features/SUB` (subagent) + `internal/tools`

## TL;DR

When a file exceeds pi-go's Read budget (default line cap = 2000 lines for non-source files, plus a 256 KB safety net in
`internal/tools/truncate.go`, plus AfterToolCallback compaction in `internal/tools/compactor_read.go`), the parent agent
today must manually paginate with `offset`/`limit` and stitch the results together in its own context. That is
expensive, lossy, and error-prone for files that are hundreds of thousands of lines (large logs, generated code,
vendored JSON, captured traces).

This document proposes a **subagent-backed iterative chunked-read harness** that:

1. Exposes a new tool `read_summary` in `internal/tools`.
2. Internally dispatches a dedicated `file-summarizer` subagent with its own isolated context window.
3. Drives a deterministic chunk-by-chunk traversal using opaque **continuation tokens**, so either the caller or the
   subagent can decide when to stop.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add dimetron/pi-go/specs/features/TOO/003-large-files/DESIGN.md@sha256:9de24294afef2ed4

The line at the top of this page pins the label git:20260622.ffbb6d5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_onfp7fkq7q4vf4jo.svg)](https://markdownregistry.com/a/art_onfp7fkq7q4vf4jo)

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Versions

The registry has recorded 1 version of this file, committed on Jun 22, 2026.

versioncommittedcommitsizeaudit
git:20260622.ffbb6d5 latest2026-06-22 ffbb6d5 21,451 BA view

Audit of the latest version

A  14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Size between 200 bytes and 200 KB (21451 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

dimetron/pi-go · 214 stars · license MIT · pushed 2026-10-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_onfp7fkq7q4vf4jo
GET https://markdownregistry.com/api/v1/resolve?ref=dimetron/pi-go/specs/features/TOO/003-large-files/DESIGN.md
GET https://markdownregistry.com/api/v1/blob/9de24294afef2ed45555aeef4320e88a114252927bf5c339a23e362b3939b10a

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: what DESIGN.md is and how agents use it · which agent file does what.

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