A local web viewer for a Harness-Bujang team chat room, styled like KakaoTalk. It starts a server on your computer and opens the viewer in a browser so you can watch team messages as they arrive.

Use it to open the chat room, watch live dispatches and reports, and inspect the messages saved in a project's local chat database.

It provides a visible record of what the coordinator and specialist teams are doing during a task. This is useful when work is happening across several agents.

open-chat — Command for Claude Code by bjcho4141/harness-bujang

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/bjcho4141/harness-bujang

Made for: Claude Code.

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/commands/bjcho4141/harness-bujang/open-chat/github.svg)](https://agentmods.dev/commands/bjcho4141/harness-bujang/open-chat)

Your own site

<a href="https://agentmods.dev/commands/bjcho4141/harness-bujang/open-chat"><img src="https://agentmods.dev/badge/commands/bjcho4141/harness-bujang/open-chat/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/commands/bjcho4141/harness-bujang/open-chat"><img src="https://agentmods.dev/badge/commands/bjcho4141/harness-bujang/open-chat.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 50 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 436 The whole file, excluding the scripts and references it only reads on demand.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00050	$0.00436
Opus 5.5	$0.00020	$0.00174
Sonnet 5.5	$0.00010	$0.00087
Haiku 4.5	$0.00005	$0.00044

Measured 2mo ago against content hash b7a8ee8a4321, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

open-chat 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.

packages/plugin/commands/open-chat.md · 39 lines

What it actually says

/open-chat

부장님 톡방 viewer 를 백그라운드로 띄우고 브라우저 자동 오픈.

Action — run the CLI in the background

The published harness-bujang package on npm ships a standalone HTTP server (bujang chat) that:

picks a free port starting at 7777 (falls forward to 7778, 7779, … if busy)
serves a KakaoTalk-style viewer that streams harness_messages from .harness/chat.db
auto-opens http://localhost:<port> in the user's default browser

It runs in the foreground by design — so when invoked from this slash command, you MUST run it via the Bash tool with run_in_background: true. Otherwise the agent loop blocks until the user kills the server.

npx harness-bujang@latest chat

If the project has not been initialized yet (no .harness/chat.db), pass --create so the CLI seeds an empty schema:

npx harness-bujang@latest chat --create

After launch

The CLI prints the chosen port (http://localhost:7777 or next free) to stdout — relay that URL back to the user in your reply, since they may have multiple terminals open.
The browser auto-opens, so on most setups the user sees the chat room immediately.
The server keeps running in the background until the user closes it (Ctrl-C in the spawning terminal, or kill <pid>).

Already running?

If port 7777 is in use, the CLI silently uses 7778, 7779, … — no error. Just relay whichever URL the CLI prints. The user can close any old viewers if they want a single tab.

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.

2mo ago First seen · 39 lines · 50 tokens per session scan A b7a8ee8a4321

Subscribe to this mod's changes

open-chat is a command published in the GitHub repository bjcho4141/harness-bujang (7 stars, last pushed 5mo ago), licensed MIT. It adds 50 tokens to every session and 436 once invoked, about $0.0002 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.

open-chat next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
open-chatbjcho4141/harness-bujang	Command	7	5mo ago	MIT	A	50	Claude Code
checklistgithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
clarifygithub/spec-kit	Command	148k	yesterday	MIT	A	27	Claude Code
specifygithub/spec-kit	Command	148k	yesterday	MIT	A	13	Claude Code
analyzegithub/spec-kit	Command	148k	yesterday	MIT	A	26	Claude Code
convergegithub/spec-kit	Command	148k	yesterday	MIT	A	35	Claude Code
implementgithub/spec-kit	Command	148k	yesterday	MIT	A	14	Claude Code