What is tscodesearch AGENTS.md?

Repository instructions for Microsoft’s TypeScript code-search project, including preferred GitHub workflows and troubleshooting notes for its indexer.

Handling GitHub issues and pull requests, configuring the indexer, restarting it, and inspecting real-time CSV logs.

It tells agents how to work with the repository and how to investigate repeated indexing by enabling CSV debug logs.

How microsoft/tscodesearch configures Codex and OpenCode

About the project

codesearch is an MCP wrapper that lets AI assistants perform full-text and structural searches across a large monorepo, which is a repository containing multiple related projects or components. It is for developers using Claude or VS Code who need to query indexed source code without manually copying it into a chat, and the catalogue includes its instructions.

microsoft/tscodesearch · 4 stars · on GitHub

Reuse

Borrowing it

Nothing to install: this file belongs to microsoft/tscodesearch. 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/microsoft/tscodesearch/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/microsoft/tscodesearch

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/microsoft/tscodesearch/agents-md/github.svg)](https://agentmods.dev/instructions/microsoft/tscodesearch/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/microsoft/tscodesearch/agents-md"><img src="https://agentmods.dev/badge/instructions/microsoft/tscodesearch/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/microsoft/tscodesearch/agents-md"><img src="https://agentmods.dev/badge/instructions/microsoft/tscodesearch/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 6,923 This file is loaded in full into every session.

When invoked 6,923 The same file — it is already loaded in full.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.06923	$0.06923
Opus 5.5	$0.02769	$0.02769
Sonnet 5.5	$0.01385	$0.01385
Haiku 4.5	$0.00692	$0.00692

Measured 1mo ago against content hash 358e2820a333, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tscodesearch AGENTS.md scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Management API via curl (read key/port from config.json -- never hard-code):

AGENTS.md · 418 lines

How it starts

The opening of the file, as written. The whole thing — 418 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent notes

This is the canonical instructions file for repository guidance. Put all repository-wide agent instructions in AGENTS.md. Projects may provide their own AGENTS.md for scoped guidance.

Operational notes for agents working in this repo are maintained below.

GitHub workflow preference

This repository is hosted on GitHub. When working with pull requests, comments, checks, issues, and repository metadata, prefer GitHub-native tooling (for example, GH CLI and available GitHub-integrated tools) whenever possible.

Debugging the indexer: real-time CSV logs

When something goes wrong on the indexer side (the classic symptom: files get re-indexed on every restart even though the index already contains them), turn on the CSV debug log.

Enable

Set csv_debug in config.json:

{
  "port": 8108,
  "csv_debug": true,
  "roots": { "default": { "path": "q:/spocore/src" } }
}

Then node ts.mjs restart (or ts restart if the cmd is on PATH).

Accepted values:

value	effect
`false` / `""` / unset	off
`true` / `"1"` / `"on"` / `"true"`	logs to `<repo>/.tantivy_csv/`
any other string	treated as an explicit directory path -- logs land there

Logging is opt-in and append-only; rows from successive restarts share a file and are distinguished by the per-row pid column.

CSV files

Written by indexserver/debug_logger.py, one file per event type. Each row starts with ts (ms-precision local time) and pid.

file	rows are written when	useful columns
`session.csv`	daemon start/stop	`action` = `start`/`stop`
`backend_export.csv`	verifier exports the index map at scan start (once per session)	`doc_id`, `mtime`, `relative_path`
`fs_walk.csv`	every file the verifier walks against the exported map	`decision` = `matched` / `missing` / `stale`
`orphan.csv`	index entries with no matching file on disk (about to be deleted)	`doc_id`
`enqueue.csv`	every `IndexQueue.enqueue` (including dedup hits)	`action`, `reason`, `is_new`
`parse.csv`	every tree-sitter parse the queue worker runs	`parse_ms`, `ok`, `error`
`commit.csv`	every Tantivy commit, success or failure	`duration_ms`, `success`, `error`
`watcher.csv`	every watchdog event	`src_path`, `action`

Read the full file on GitHub · 418 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.

1mo ago Changed · -8 tokens per session 358e2820a333
2mo ago First seen · 418 lines · 6,931 tokens per session scan A e6c3e9fcf9bd

Subscribe to this mod's changes

tscodesearch AGENTS.md is an instructions file published in the GitHub repository microsoft/tscodesearch (4 stars, last pushed 4d ago), licensed MIT. It adds 6,923 tokens to every session, about $0.0277 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Debugging

tscodesearch AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
tscodesearch AGENTS.mdmicrosoft/tscodesearch	Instructions file	4	4d ago	MIT	A	6,923	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

tscodesearch: Instructions file for Codex