igce-builder-ffp

igce-builder-ffp is a skill for Codex from 1102tools-dev/federal-contracting-skills. It costs 188 tokens per session (5,690 once invoked), scanned A, original, MIT.

A workflow for building a firm-fixed-price Independent Government Cost Estimate, a government estimate for a contract with one agreed price. It combines wage data, indirect costs, profit, travel, and market-rate information.

In plain words
What is it for?
Use it to create formula-based fixed-price estimates, compare proposed rates with GSA or CALC+ data, model travel and wrap rates, and prepare draft analysis materials.
Why use it?
It shows how each cost layer affects the total while keeping the estimate separate from the contracting officer’s final judgment about the price.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to create formula-based fixed-price estimates, compare proposed rates with GSA or CALC+ data, model travel and wrap rates, and prepare draft analysis materials.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/1102tools-dev/federal-contracting-skills/igce-builder-ffp
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 1102tools-dev/federal-contracting-skills --skill igce-builder-ffp
Clone the repo
git clone --depth 1 https://github.com/1102tools-dev/federal-contracting-skills

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 igce-builder-ffp

README.md
[![agentmods](https://agentmods.dev/badge/skills/1102tools-dev/federal-contracting-skills/igce-builder-ffp/github.svg)](https://agentmods.dev/skills/1102tools-dev/federal-contracting-skills/igce-builder-ffp)
Your own site
<a href="https://agentmods.dev/skills/1102tools-dev/federal-contracting-skills/igce-builder-ffp"><img src="https://agentmods.dev/badge/skills/1102tools-dev/federal-contracting-skills/igce-builder-ffp/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 igce-builder-ffp

Your own site · 80×15
<a href="https://agentmods.dev/skills/1102tools-dev/federal-contracting-skills/igce-builder-ffp"><img src="https://agentmods.dev/badge/skills/1102tools-dev/federal-contracting-skills/igce-builder-ffp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 188 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,690 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 247
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00188 $0.05690
Opus 5 $0.00094 $0.02845
Sonnet 5 $0.00038 $0.01138
Haiku 4.5 $0.00019 $0.00569

Measured 10d ago against content hash 7f37022a060e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

igce-builder-ffp 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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/recompute_expected_values.py, scripts/validate_workbook.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/igce-builder-ffp/SKILL.md · 305 lines

How it starts

The opening of the file, as written. The whole thing — 305 lines — stays where its author put it; the contents beside it link to each section on GitHub.

IGCE Builder: Firm-Fixed-Price (FFP)

Purpose and operating boundary

Build an auditable FFP Independent Government Cost Estimate from BLS wages, layered indirect rates, CALC+ positioning data, travel inputs, and the Contracting Officer's assumptions. Keep the BLS wage, aging adjustment, fringe, overhead, G&A, profit, and fixed-price calculations visible and formula driven.

Assemble data and format workbooks. Do not originate professional judgments reserved to the Contracting Officer:

  • Do not determine that a price or rate is fair and reasonable.
  • Do not invent premiums for clearance, SCIF, OCONUS, specialty labor, or other conditions that the available data does not quantify.
  • Do not draft a determination, negotiation position, responsibility finding, or signature-ready FAR memorandum unless the user supplies the rationale and conclusion. If supplied, reproduce that text verbatim and mark the output DRAFT.
  • Use neutral positioning language such as "at CALC+ P77" or "above P50 by 22%." Avoid "reasonable," "defensible," "acceptable," "competitive," and similar conclusions.
  • Workflow B produces positioning data only unless the user chooses the controlled memo-fill path and supplies the required determination text.

If a sentence concludes whether a number is right or wrong, stop and replace it with sourced data, arithmetic, and the decision left to the Contracting Officer.

Product quality default

Build a decision-ready FFP estimate, not an evidence dump. The IGCE Summary sheet must start with the acquisition purpose, decision supported, grand total, period, pricing basis, editable assumptions, top drivers, material limitations, and the next Contracting Officer action. Use FFP Independent Government Cost Estimate — [Requirement] as the default title, adapting it to a deliverable or period-priced estimate. Keep raw calls, exact query inputs, and source detail in Raw Data; keep calculation explanation in Methodology. Never turn neutral positioning into a fair-and-reasonable conclusion.

Read the full file on GitHub · 305 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 · 305 lines · 188 tokens per session scan A 7f37022a060e

Subscribe to this mod's changes

igce-builder-ffp is a skill published in the GitHub repository 1102tools-dev/federal-contracting-skills (25 stars, last pushed 9d ago), licensed MIT. It adds 188 tokens to every session and 5,690 once invoked, about $0.0009 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 2026-08-30.

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