backlog-notation

A syntax reference for Backlog notation, a text-formatting system used by some Nulab Backlog projects. Backlog projects may instead use Markdown, so the project’s selected format matters.

In plain words
What is it for?
Use it to write or edit formatted Backlog text when the project uses Backlog notation, including headings, lists, links, and other supported formatting.
Why use it?
It prevents formatted text from appearing as literal symbols when posting issue descriptions, comments, wiki pages, or pull requests in Backlog.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/nulab/bee/backlog-notation
Any agent
npx skills add nulab/bee --skill backlog-notation
Clone the repo
git clone --depth 1 https://github.com/nulab/bee

Made for: Claude Code, Codex.

Per session 201 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,478 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00201 $0.01478
Opus 5 $0.00101 $0.00739
Sonnet 5 $0.00040 $0.00296
Haiku 4.5 $0.00020 $0.00148

Measured yesterday against content hash 1e5cb1372567, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

backlog-notation 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 yesterday.

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.

curl -F "[email protected]" https://xxx.backlog.com/api/v2/...
skills/backlog-notation/SKILL.md · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

backlog-notation

Backlog notation (Backlog記法) syntax reference.

When this applies

Every Backlog project is set to one text formatting rule: Markdown (the default for new projects) or Backlog notation. This reference covers Backlog notation only. It is not a Backlog-wide standard, and it does not apply to Markdown projects — in those, write plain Markdown and ignore everything below.

Backlog renders text strictly by the project's rule: Backlog notation posted to a Markdown project (or vice versa) is not converted — it shows up as literal characters like ''bold'' or **bold**. Determine the rule like this:

  1. The user or project instructions (AGENTS.md, CLAUDE.md) already state the rule — the usual case. Follow what is stated; do not spend an API call re-verifying it.

  2. The rule is not stated anywhere — check it once before posting:

    bee project view -p PROJECT_KEY --json textFormattingRule
    # {"textFormattingRule":"backlog"}   -> use this reference
    # {"textFormattingRule":"markdown"}  -> use Markdown instead
    

    If you cannot run bee (e.g. this skill is installed without it), fetch /api/v2/projects/PROJECT_KEY from the Backlog API and read textFormattingRule, or ask the user.

Backlog notation is not Markdown — never mix the two syntaxes in one text.

Quick Reference

Feature Syntax
Heading * H1 / ** H2 / *** H3 / **** H4
Bold ''text''
Italic '''text'''
Strikethrough %%text%%
Color &color(red) { text }
Color + background &color(#fff, #333) { text }
Bullet list - item (nest with --)
Numbered list + item (nest with ++)
Checklist - [ ] todo / - [x] done (issue descriptions only)
Link [[https://example.com]]
Labeled link [[label>https://example.com]]
Issue link PROJECT-123 (auto-linked)
Quote > text or {quote}...{/quote}
Code block {code}...{/code}
Code (lang) {code:java}...{/code}
Image #image(URL or filename)
Thumbnail #thumbnail(URL or filename) (< 200KB)
Table of contents #contents
Line break &br;
Escape \ before special characters

Read the full file on GitHub · 117 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. yesterday First seen · 117 lines · 201 tokens per session scan A 1e5cb1372567

Subscribe to this mod's changes

backlog-notation is a skill published in the GitHub repository nulab/bee (72 stars, last pushed 2d ago), licensed MIT. It adds 201 tokens to every session and 1,478 once invoked, about $0.0010 per session on Opus 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.

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