jcode is a command-line coding-agent harness that lets developers run AI-assisted programming sessions while using relatively little memory. It is designed for developers who need efficient single- or multi-session workflows with language-model providers and related tools. The catalogue includes a skill and an instruction for working with jcode.
Borrowing it
Nothing to install: this file belongs to 1jehuang/jcode. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/1jehuang/jcode/master/AGENTS.mdgit clone --depth 1 https://github.com/1jehuang/jcodeWrote 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.
[](https://agentmods.dev/instructions/1jehuang/jcode/agents-md)<a href="https://agentmods.dev/instructions/1jehuang/jcode/agents-md"><img src="https://agentmods.dev/badge/instructions/1jehuang/jcode/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.
<a href="https://agentmods.dev/instructions/1jehuang/jcode/agents-md"><img src="https://agentmods.dev/badge/instructions/1jehuang/jcode/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01212 | $0.01212 |
| Opus 5.5 | $0.00485 | $0.00485 |
| Sonnet 5.5 | $0.00242 | $0.00242 |
| Haiku 4.5 | $0.00121 | $0.00121 |
Grade A, and why
jcode 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 92 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Guidelines
Repository Scope
- Jcode Desktop is in a separate repository.
TUI style
- UI chrome must not wrap: startup headers, account rows, status labels, and other compact UI rows should fit their available terminal-cell width or truncate with an ellipsis. Count Unicode display cells, not characters. Preserve one logical row per visual row, including at narrow widths. Chat prose and other intentionally multiline content may wrap normally.
- Reuse the info widget's limit-bar renderer for usage indicators instead of introducing a different bar glyph, color, or used/remaining convention.
Development Workflow
- Commit and push as you go - Make small, scoped commits and push them to the current branch's remote as meaningful work is completed, rather than waiting until the end of the task. Preserve unrelated changes and never force-push unless the user explicitly authorizes it.
- Use the user's Git identity - Create commits with the configured
user.nameanduser.email. Do not override them withJcode,Jcode agent, or a fabricated agent email. Preserve existing contributor attribution when integrating work. If no identity is configured, ask rather than inventing one. - Welcome pull requests from everyone - Review contributions on their merits,
regardless of whether the author is a maintainer, an existing contributor, a
first-time contributor, or an agent. Good PRs can be merged directly after review
and validation. Do not require a maintainer-authored rewrite merely because of
who submitted the change. See
CONTRIBUTING.mdfor the contribution policy. - Prefer master/main - Work directly on the repository's primary branch
(
masterormain) by default. Do not create a branch or worktree merely to start a task. Only do so when the user explicitly requests it or isolation is genuinely necessary, and explain the concrete reason first. - Keep work scoped - Preserve unrelated work. If already on a branch with ongoing changes, finish and integrate safely rather than switching blindly. When the user asks you to review or integrate a PR or branch, you may inspect, test, and integrate that contribution regardless of author status. Do not pull in unrelated branches or merge a PR without user authorization.
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.
- 3d ago Changed · +4 lines · +62 tokens per session f007d4cad7d0
- 8d ago Changed · +16 lines · +192 tokens per session 87f780b8d933
- 20d ago Changed · +10 lines · +109 tokens per session 9fe048e74b2e
- 23d ago Changed · +5 lines · +80 tokens per session bb9e1d5f5413
- 1mo ago Changed · +4 lines · +14 tokens per session 1cdba37642d0
- 1mo ago Changed · +4 lines · +69 tokens per session 41ecb9dff195
- 1mo ago Changed · +4 lines · +53 tokens per session 5715bf9f8d0c
- 2mo ago First seen · 45 lines · 633 tokens per session scan A 23f9a0f60466
jcode AGENTS.md is an instructions file published in the GitHub repository 1jehuang/jcode (21,528 stars, last pushed yesterday), licensed MIT. It adds 1,212 tokens to every session, about $0.0048 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 2026-08-30.
jcode AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| jcode AGENTS.md1jehuang/jcode | Instructions file | 22k | yesterday | MIT | A | 1,212 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |