supply-chain-hardening: Skill for Claude Code

.agents/skills/tbd/SKILL.md

tbd is a skill for Claude Code from jlevy/supply-chain-hardening. It costs 223 tokens per session (4,986 once invoked), scanned A, original, MIT.

A Git-based tool for tracking bugs, features, and tasks inside a code repository. It also provides planning templates, engineering guidelines, and reusable instructions for common development work.

In plain words
What is it for?
Planning features, splitting specifications into tasks, reviewing code, preparing commits, cleaning up projects, and handing work to another developer or agent. TDD means test-driven development, where tests guide implementation; a monorepo is one repository containing multiple related projects.
Why use it?
It keeps work items, their dependencies, project knowledge, and plans in the repository, so people and coding agents can continue work across sessions.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is jlevy/supply-chain-hardening's own configuration. It tells Claude Code how to work on supply-chain-hardening itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything supply-chain-hardening configures →

Reuse

Borrowing it

Nothing to install: this file belongs to jlevy/supply-chain-hardening. 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/jlevy/supply-chain-hardening/main/.agents/skills/tbd/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jlevy/supply-chain-hardening

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.

agentmods badge for tbd

README.md
[![agentmods](https://agentmods.dev/badge/skills/jlevy/supply-chain-hardening/tbd/github.svg)](https://agentmods.dev/skills/jlevy/supply-chain-hardening/tbd)
Your own site
<a href="https://agentmods.dev/skills/jlevy/supply-chain-hardening/tbd"><img src="https://agentmods.dev/badge/skills/jlevy/supply-chain-hardening/tbd/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.

agentmods 80×15 button for tbd

Your own site · 80×15
<a href="https://agentmods.dev/skills/jlevy/supply-chain-hardening/tbd"><img src="https://agentmods.dev/badge/skills/jlevy/supply-chain-hardening/tbd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 223 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,986 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00223 $0.04986
Opus 5 $0.00112 $0.02493
Sonnet 5 $0.00045 $0.00997
Haiku 4.5 $0.00022 $0.00499

Measured 10d ago against content hash 249639098011, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

tbd 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 10d 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.

.agents/skills/tbd/SKILL.md · 330 lines

How it starts

The opening of the file, as written. The whole thing — 330 lines — stays where its author put it; the contents beside it link to each section on GitHub.

tbd helps humans and agents ship code with greater speed, quality, and discipline.

  1. Beads: Git-native issue tracking (tasks, bugs, features). Never lose work across sessions. Drop-in replacement for bd.
  2. Spec-Driven Workflows: Plan features → break into beads → implement systematically.
  3. Knowledge Injection: 25+ engineering guidelines (TypeScript, Python, TDD, testing, Convex, monorepos) available on demand.
  4. Shortcuts: Reusable instruction templates for common workflows (code review, commits, PRs, cleanup, handoffs).

Installation

npm install -g get-tbd@latest      # Install or upgrade the CLI (same command for both)
tbd setup --auto --prefix=<name>   # Fresh project (--prefix is REQUIRED: 2-8 alphabetic chars recommended. ALWAYS ASK THE USER FOR THE PREFIX; do not guess it)
tbd setup --auto                   # Existing tbd project — also the upgrade step (applies any format migration; commit the diff it reports)
tbd setup --from-beads             # Migration from .beads/ if `bd` has been used

If tbd refuses with “This repository requires a newer version of tbd”, run the two install/upgrade commands above.

Routine Commands

tbd --help    # Command reference
tbd status    # Status
tbd doctor    # If there are problems

tbd setup --auto   # Run any time to refresh setup
tbd prime      # Restore full context on tbd after compaction

CRITICAL: You Operate tbd, the User Doesn’t

You are the tbd operator: Users talk naturally; you translate their requests to tbd actions. DO NOT tell users to run tbd commands. That’s your job.

  • WRONG: “Run tbd create to track this bug”

  • RIGHT: (you run tbd create yourself and tell the user it’s tracked)

Welcoming a user: When users ask “what is tbd?” or want help → run tbd shortcut welcome-user

User Request → Agent Action

User Says You (the Agent) Run
Issues/Beads
“There’s a bug where …” tbd create "..." --type=bug
“Create a task/feature for …” tbd create "..." --type=task or --type=feature
“Let’s work on issues/beads” tbd ready
“Show me issue X” (or several) tbd show <id1> [<id2> …] (one call, never a loop; --max-lines <n> caps output per issue)
“Where do things stand on spec X?” tbd list --spec <path-or-filename> (all specs at once: tbd list --specs)
“Close this issue” tbd close <id> (several: tbd close <id1> <id2> … — one call, never a loop)
“Search issues for X” tbd search "X" (matches content and issue IDs, so partial IDs work)
“Add label X to issue” tbd label add <id> <label> (several beads: tbd update <id1> <id2> … --add-label <label>)
“What issues are stale?” tbd stale
Planning & Specs
“Plan a new feature” / “Create a spec” tbd shortcut new-plan-spec
“Break spec into beads” tbd shortcut plan-implementation-with-beads
“Implement these beads” tbd shortcut implement-beads
Code Review & Commits
“Review this code” / “Code review” tbd shortcut review-code
“Review this PR” tbd shortcut review-github-pr
“Commit this” / “Use the commit shortcut” tbd shortcut code-review-and-commit
“Create a PR” / “File a PR” tbd shortcut create-or-update-pr-simple
“Merge main into my branch” tbd shortcut merge-upstream
Guidelines & Knowledge
(any engineering work) Load the General engineering group first (see below)
“Use TypeScript best practices” tbd guidelines typescript-rules typescript-lint-format-rules
“Use Python best practices” tbd guidelines python-rules
“Set up TS/JS lint, format, or hooks” tbd guidelines typescript-lint-format-rules
“Build a TypeScript CLI” tbd guidelines typescript-cli-tool-rules
“Improve monorepo setup” tbd guidelines pnpm-monorepo-patterns or bun-monorepo-patterns
“Add golden/e2e testing” tbd guidelines golden-testing-guidelines
“Use TDD” / “Test-driven development” tbd guidelines general-tdd-guidelines
“Convex best practices” tbd guidelines convex-rules
Documentation
“Research this topic” tbd shortcut new-research-brief
“Document architecture” tbd shortcut new-architecture-doc
“What guidelines/docs are there?” tbd docs list
“Make the guidelines visible / customize doc X” tbd docs fork --category=general --category=<lang> (recommended: general + the repo’s languages), or tbd docs fork <name> / --all; then edit in docs/tbd/
“Update the guidelines to the latest” tbd docs update; on conflicts ask the user, then --merge or --keep-ours
“I deleted a forked doc file” tbd docs status shows it missing; restore with tbd docs fork <name> --force or finalize with tbd docs unfork <name>
Cleanup & Maintenance
“Clean up this code” / “Remove dead code” tbd shortcut code-cleanup-all
“Fix repository problems” tbd doctor --fix
Sessions & Handoffs
“Hand off to another agent” tbd shortcut agent-handoff
“Check out this library’s source” tbd shortcut checkout-third-party-repo
(your choice whenever appropriate) tbd list, tbd dep add, tbd close, tbd sync, etc.

Read the full file on GitHub · 330 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. 10d ago First seen · 330 lines · 223 tokens per session scan A 249639098011

Subscribe to this mod's changes

tbd is a skill published in the GitHub repository jlevy/supply-chain-hardening (5 stars, last pushed 1mo ago), licensed MIT. It adds 223 tokens to every session and 4,986 once invoked, about $0.0011 per session on Opus 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.

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