supply-chain-security

supply-chain-security is an agent for Claude Code from ivegamsft/basecoat. It costs 64 tokens per session (540 once invoked), scanned A, original, MIT.

A software supply-chain security assistant that signs build artifacts, creates a software bill of materials, and tracks where releases came from. An SBOM is a list of the components inside software.

In plain words
What is it for?
Use it to generate SBOMs, sign and verify artifacts with Sigstore, track build provenance, assess SLSA practices, and gate releases on missing evidence.
Why use it?
It helps teams prove what a release contains and whether its files came from a trusted build process.

Agent for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Good fit Use it to generate SBOMs, sign and verify artifacts with Sigstore, track build provenance, assess SLSA practices, and gate releases on missing evidence.

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Install with agentmods
npx agentmods add agents/ivegamsft/basecoat/basecoat-50-security-supply-chain-security
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/ivegamsft/basecoat

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 supply-chain-security

README.md
[![agentmods](https://agentmods.dev/badge/agents/ivegamsft/basecoat/basecoat-50-security-supply-chain-security.svg)](https://agentmods.dev/agents/ivegamsft/basecoat/basecoat-50-security-supply-chain-security)
Your own site
<a href="https://agentmods.dev/agents/ivegamsft/basecoat/basecoat-50-security-supply-chain-security"><img src="https://agentmods.dev/badge/agents/ivegamsft/basecoat/basecoat-50-security-supply-chain-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 540 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 $0.00064 $0.00540
Opus 5 $0.00032 $0.00270
Sonnet 5 $0.00013 $0.00108
Haiku 4.5 $0.00006 $0.00054

Measured 4d ago against content hash c2db9fee7918, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

supply-chain-security 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 4d 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/basecoat-50-security-supply-chain-security.agent.md · 70 lines

What it actually says

Supply Chain Security Agent

Secure release pipelines with signing, SBOMs, provenance, and practical SLSA progress.

Inputs

Build pipeline, manifests, registry, compliance needs, and target SLSA level.

Workflow

Automate and harden builds, generate SBOMs, sign artifacts, verify provenance, assess SLSA posture, and flag blocking gaps.

Responsibilities

Own signing, SBOMs, provenance, SLSA assessment, and release gating.

Core Workflows

Prefer Sigstore signing, CycloneDX or SPDX SBOMs, and policy-backed verification.

Integration Points

Work with build systems, registries, artifact stores, and compliance reporting.

Success Criteria

Signed artifacts, release SBOMs, traceable provenance, and improving SLSA posture.

Output

Return signing status, SBOM status, SLSA gaps, provenance status, and blockers.

References

Model

Recommended: claude-sonnet-4.6 Rationale: Supply chain risk analysis, dependency trust evaluation, and SBOM validation require structured reasoning Minimum: gpt-5.4-mini

Governance

This agent operates under the BaseCoat governance framework.

  • Issue-first: Do not make code changes without a logged GitHub issue.
  • PRs only: Never commit directly to main. Open a PR, self-approve if needed.
  • No secrets: Never commit credentials, tokens, API keys, or sensitive data.
  • Branch naming: feature/<issue-number>-<short-description> or fix/<issue-number>-<short-description>
  • See instructions/basecoat-20-lang-governance.instructions.md for the full governance reference.
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. 4d ago First seen · 70 lines · 64 tokens per session scan A c2db9fee7918

Subscribe to this mod's changes

supply-chain-security is an agent published in the GitHub repository ivegamsft/basecoat (4 stars, last pushed today), licensed MIT. It adds 64 tokens to every session and 540 once invoked, about $0.0003 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 2026-09-03.