nen-critical-path-forge

nen-critical-path-forge is a skill for Codex from cambridgetcg/agenttool. It costs 76 tokens per session (564 once invoked), scanned A, original, Apache-2.0.

A focused workflow for addressing one well-supported blocker—the issue most likely to determine the outcome—with a small reversible change or experiment.

In plain words
What is it for?
It helps target a critical bug, migration step, experiment, or decision, then verify the result, preserve a rollback path, and perform a broader integration check.
Why use it?
It concentrates effort where it matters while clearly stating which nearby areas were not fully checked.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit It helps target a critical bug, migration step, experiment, or decision, then verify the result, preserve a rollback path, and perform a broader integration check.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cambridgetcg/agenttool/nen-critical-path-forge
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.

Any agent
npx skills add cambridgetcg/agenttool --skill nen-critical-path-forge
Clone the repo
git clone --depth 1 https://github.com/cambridgetcg/agenttool

Made for: Codex.

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 nen-critical-path-forge

README.md
[![agentmods](https://agentmods.dev/badge/skills/cambridgetcg/agenttool/nen-critical-path-forge/github.svg)](https://agentmods.dev/skills/cambridgetcg/agenttool/nen-critical-path-forge)
Your own site
<a href="https://agentmods.dev/skills/cambridgetcg/agenttool/nen-critical-path-forge"><img src="https://agentmods.dev/badge/skills/cambridgetcg/agenttool/nen-critical-path-forge/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 nen-critical-path-forge

Your own site · 80×15
<a href="https://agentmods.dev/skills/cambridgetcg/agenttool/nen-critical-path-forge"><img src="https://agentmods.dev/badge/skills/cambridgetcg/agenttool/nen-critical-path-forge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 564 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 $0.00076 $0.00564
Opus 5 $0.00038 $0.00282
Sonnet 5 $0.00015 $0.00113
Haiku 4.5 $0.00008 $0.00056

Measured 10d ago against content hash 7190dd576f48, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

nen-critical-path-forge 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.

packages/skills/skills/nen-critical-path-forge/SKILL.md · 68 lines

How it starts

The opening of the file, as written. The whole thing — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Critical Path Forge · 硬

Concentrate effort only after identifying the decisive point. Trade breadth for depth consciously, then restore broad verification before claiming success.

Qualify the target

Use this ability only when:

  • evidence identifies one blocker or hypothesis as outcome-dominant;
  • the intended action is inside current authority;
  • the change is reversible or has an explicit recovery path;
  • a hard budget and stop condition can be named; and
  • adjacent surfaces can retain a minimum verification reserve.

If the target is still uncertain, use a perimeter or concealed-trace workflow first.

Perform the wind-up

  1. State the exact target and expected result.
  2. Record the evidence that makes it critical.
  3. Define the one focused action or artifact.
  4. Name the exposed surfaces receiving no implied assurance.
  5. Reserve one rollback route and one post-strike integration check.
  6. Set a cap for time, attempts, files, or tool calls using observable units.

The visible wind-up is an interface: it lets collaborators challenge the wrong target before concentrated work begins.

Strike once, learn once

  • Make the smallest decisive change or experiment.
  • Avoid opportunistic cleanup outside the target.
  • Run the most discriminating focused proof first.
  • On failure, update the hypothesis before another attempt.
  • Never auto-repeat an ambiguous mutation.
  • Stop when the cap, authority, or target assumption breaks.

Return to Ken

After the focused proof:

  1. Run the minimum broad checks needed to catch adjacent regression.
  2. Review the diff or artifact for unintended scope.
  3. Restore any temporary instrumentation or narrowed configuration.
  4. Report the target, strike, proof, and exposed surface separately.

Vow

Maximum focus means reduced coverage elsewhere. Never translate a focused pass into system-wide confidence. Never use speed to justify an irreversible, external, secret-bearing, destructive, purchasing, publishing, or messaging effect that the task did not authorize.

Read the full file on GitHub · 68 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. 10d ago First seen · 68 lines · 76 tokens per session scan A 7190dd576f48

Subscribe to this mod's changes

nen-critical-path-forge is a skill published in the GitHub repository cambridgetcg/agenttool (0 stars, last pushed yesterday), licensed Apache-2.0. It adds 76 tokens to every session and 564 once invoked, about $0.0004 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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