{"slug":"flyfission-nuclear-grade-context-engineering","name":"Nuclear Grade Context Engineering","description":"AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering.","long_description":"<div align=\"center\">\n\n<img src=\"docs/assets/landing-banner.svg\" alt=\"Nuclear-grade Context Engineering: let AI do serious software work and stay in control of what ships. Go fast while exploring; slow down when the work becomes a promise.\" width=\"820\">\n\n<br/>\n\n**A simple, evidence-first way to let AI do serious software work and stay in control of what ships.**\n\n[![CI](https://github.com/FlyFission/nuclear-grade-context-engineering/actions/workflows/ci.yml/badge.svg)](https://github.com/FlyFission/nuclear-grade-context-engineering/actions/workflows/ci.yml)\n[![License: MIT](https://img.shields.io/badge/License-MIT-2E7D45.svg)](LICENSE)\n[![Python 3.11+](https://img.shields.io/badge/Python-3.11%2B-3A5BA8.svg)](pyproject.toml)\n[![No build step](https://img.shields.io/badge/setup-no%20build%20step-5B49A6.svg)](#quick-start)\n[![PRs welcome](https://img.shields.io/badge/PRs-welcome-B07400.svg)](CONTRIBUTING.md)\n\n</div>\n\n# Nuclear Grade Context Engineering\n\nAI agents no longer just suggest code. They edit files, change prompts, call tools, swap dependencies, write the evidence, and help ship releases. That is a lot of power with very little ceremony. Nuclear-grade gives that work a clear path you stay in control of, so you can move fast and still stand behind what ships.\n\nYou do not need to read the whole repo to start. Run one command in [See it work, then make it yours](#see-it-work-then-make-it-yours), copy one folder, and add the rest only when a change earns it.\n\n## Why this exists\n\nI have spent over a decade in the nuclear field, and I run [FlyFission Consulting Group](https://flyfission.com/), an independent design-review and advisory practice for nuclear projects. I build software and agentic engineering workflows and tools for the nuclear and other mission-critical industries, where mistakes carry real consequences and \"fail forward\" is far less optional than it is in ordinary software. That same conviction drives [AscertAIn](https://ascertain.it/), an AI-powered e","tagline":"AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering.","category":"utility","tags":["agent-skill","skill","agent","coding-agent","python"],"author":"FlyFission","verified":false,"attribution":{"status":"community_indexed","statusLabel":"Community indexed","shortLabel":"COMMUNITY INDEXED","sourceLabel":"OpenAgentSkill auto-indexer","sourceDetail":"FlyFission/nuclear-grade-context-engineering","creatorName":"FlyFission","creatorUrl":"https://github.com/FlyFission","sourceUrl":"https://github.com/FlyFission/nuclear-grade-context-engineering","indexedBy":"OpenAgentSkill community index","claimUrl":"https://www.openagentskill.com/skills/flyfission-nuclear-grade-context-engineering#claim-this-skill","claimCta":"Claim this skill","trustNote":"This listing was indexed from public sources and is not marked official until a maintainer claim is approved.","publicNote":"Attribution links to the public repository or creator profile. 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Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Nuclear Grade Context Engineering\" as a Claude Code skill from https://github.com/FlyFission/nuclear-grade-context-engineering. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Nuclear Grade Context Engineering\" from https://github.com/FlyFission/nuclear-grade-context-engineering into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/flyfission-nuclear-grade-context-engineering/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/flyfission-nuclear-grade-context-engineering"},"trust":{"score":78,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"sandbox_only","evidence":{"stars":"32 GitHub stars","repoActivity":"32 stars, 0 forks","lastPushed":"21d since push","license":"MIT","repository":"https://github.com/FlyFission/nuclear-grade-context-engineering","install":"npx skills add FlyFission/nuclear-grade-context-engineering","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["utility","agent-skill","skill","agent","coding-agent","python"],"known_risks":["This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.","Low GitHub adoption signal","Quality score needs review","GitHub adoption: 32 GitHub stars","Stars/forks activity: 32 stars, 0 forks; issue activity unavailable in current metadata"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. 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Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Nuclear Grade Context Engineering\" as a Claude Code skill from https://github.com/FlyFission/nuclear-grade-context-engineering. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Nuclear Grade Context Engineering\" from https://github.com/FlyFission/nuclear-grade-context-engineering into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/flyfission-nuclear-grade-context-engineering/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/flyfission-nuclear-grade-context-engineering"},"trust":{"score":78,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"sandbox_only","evidence":{"stars":"32 GitHub stars","repoActivity":"32 stars, 0 forks","lastPushed":"21d since push","license":"MIT","repository":"https://github.com/FlyFission/nuclear-grade-context-engineering","install":"npx skills add FlyFission/nuclear-grade-context-engineering","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["utility","agent-skill","skill","agent","coding-agent","python"],"known_risks":["This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.","Low GitHub adoption signal","Quality score needs review","GitHub adoption: 32 GitHub stars","Stars/forks activity: 32 stars, 0 forks; issue activity unavailable in current metadata"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":83,"risk_level":"risky","risk_label":"Risky","warnings":["Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required","Low GitHub adoption signal","This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.","Quality score needs review","GitHub adoption: 32 GitHub stars","Stars/forks activity: 32 stars, 0 forks; issue activity unavailable in current metadata"]},"safety_gate":{"tier":"blocked","label":"Blocked for auto-install","auto_install_policy":"block","auto_install_allowed":false,"human_review_required":true,"blocked":true,"recommended_action":"Do not auto-install. Inspect the source, dependencies, and permission surface first."},"quality":{"score":75,"label":"Strong"},"supply":{"track":"Coding and developer agents","scenario":"GitHub automation","maintenance":"21d since push","risk":"Risky"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","production agents without a repository review","Low GitHub adoption signal","Audit risk risky exceeds max_risk=medium","High-risk permission hints: Shell or command execution","Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required","This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.","Quality score needs review"],"agent_contract":{"task_input":"Use Nuclear Grade Context Engineering in an agent workflow","recommended_action":"Do not auto-install. Inspect the source, dependencies, and permission surface first.","install_policy":"block","minimum_review_before_use":["Trust: 78/100 Strong shortlist","Audit: 83/100 Risky","Safety: 55/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"flyfission-nuclear-grade-context-engineering (Nuclear Grade Context Engineering)","install_command":"npx skills add FlyFission/nuclear-grade-context-engineering","risk_summary":"Risky; Blocked for auto-install; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"flyfission-nuclear-grade-context-engineering","task":"Use Nuclear Grade Context Engineering in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/flyfission-nuclear-grade-context-engineering","api":"https://www.openagentskill.com/api/agent/skills/flyfission-nuclear-grade-context-engineering","audit":"https://www.openagentskill.com/skills/flyfission-nuclear-grade-context-engineering/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=flyfission-nuclear-grade-context-engineering&task=Use%20Nuclear%20Grade%20Context%20Engineering%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20Nuclear%20Grade%20Context%20Engineering%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20Nuclear%20Grade%20Context%20Engineering%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/flyfission-nuclear-grade-context-engineering/install","manifest":"https://www.openagentskill.com/api/registry/manifest/flyfission-nuclear-grade-context-engineering"}},"supply_profile":{"track":{"slug":"coding","label":"Coding and developer agents","shortLabel":"Coding","description":"Code review, repo analysis, testing, CI, GitHub, DevOps, and developer workflow skills."},"scenario":{"label":"GitHub automation","description":"I need my agent to triage GitHub issues, review pull requests, and summarize repository changes.","useCases":[{"slug":"github-automation","title":"GitHub automation"},{"slug":"coding-agents","title":"Coding agents"},{"slug":"workflow-automation","title":"Workflow automation"}]},"applicableAgents":["Claude Code","CLI","Codex","Cursor","Python"],"install":{"ready":true,"command":"npx skills add FlyFission/nuclear-grade-context-engineering","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":32,"starsLabel":"32","forks":0,"license":"MIT","qualityScore":75,"trustScore":78,"auditScore":83},"maintenance":{"status":"fresh","label":"21d since push","daysSincePush":21,"lastPushedAt":"2026-08-01T14:34:59+00:00"},"risk":{"level":"risky","label":"Risky","requiresReview":true,"notes":["Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required","Low GitHub adoption signal","This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.","Quality score needs review","GitHub adoption: 32 GitHub stars"]},"coverageTags":["Coding","GitHub automation","utility","agent-skill","skill","agent","coding-agent","python"]},"audit":{"audit_score":83,"risk_level":"risky","risk_label":"Risky","quality_score":75,"trust_score":78,"maintenance_score":100,"security_score":84,"install_score":92,"warnings":["Potential broker, wallet, exchange, or real-money execution surface; sandbox and explicit approval are required","Low GitHub adoption signal","This skill may touch real-money trading, broker, wallet, or exchange operations; use only in a sandbox with explicit approval.","Quality score needs review","GitHub adoption: 32 GitHub stars","Stars/forks activity: 32 stars, 0 forks; issue activity unavailable in current metadata"]},"quality_signals":{"model":"v2","star_score":10.63,"usage_score":0,"review_score":15,"metadata_score":7,"freshness_score":15},"platforms":["Python","Claude Code"],"use_cases":[{"slug":"github-automation","title":"GitHub automation","url":"https://www.openagentskill.com/use-cases/github-automation"},{"slug":"coding-agents","title":"Coding agents","url":"https://www.openagentskill.com/use-cases/coding-agents"},{"slug":"workflow-automation","title":"Workflow automation","url":"https://www.openagentskill.com/use-cases/workflow-automation"},{"slug":"browser-automation","title":"Browser automation","url":"https://www.openagentskill.com/use-cases/browser-automation"}],"stacks":[{"slug":"coding-review-agent","title":"Coding review agent","url":"https://www.openagentskill.com/collections/coding-review-agent"},{"slug":"content-growth-agent","title":"Content growth agent","url":"https://www.openagentskill.com/collections/content-growth-agent"},{"slug":"frontend-product-ui","title":"Frontend and UI","url":"https://www.openagentskill.com/collections/frontend-product-ui"}],"install":"npx skills add FlyFission/nuclear-grade-context-engineering","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.2.1/openagentskill-0.2.1.tgz install flyfission-nuclear-grade-context-engineering","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"Nuclear Grade Context Engineering\" agent skill from https://github.com/FlyFission/nuclear-grade-context-engineering. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"Nuclear Grade Context Engineering\" as a Claude Code skill from https://github.com/FlyFission/nuclear-grade-context-engineering. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this prompt to ask Claude Code to add the skill and explain the local activation steps.","copyLabel":"Copy prompt"},{"id":"cursor","label":"Cursor","title":"Cursor rule prompt","kind":"agent-prompt","value":"Turn \"Nuclear Grade Context Engineering\" from https://github.com/FlyFission/nuclear-grade-context-engineering into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: AI agents now operate with authority. Authority without discipline is how complex systems fail. Nuclear’s control loop, ported to AI-assisted software engineering. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"flyfission-nuclear-grade-context-engineering\",\"task\":\"Install Nuclear Grade Context Engineering\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this when installing as Cursor project rules or reusable agent instructions.","copyLabel":"Copy prompt"}],"repository":"https://github.com/FlyFission/nuclear-grade-context-engineering","github_repo":"FlyFission/nuclear-grade-context-engineering","version":"1.0.0","license":"MIT","urls":{"web":"https://www.openagentskill.com/skills/flyfission-nuclear-grade-context-engineering","repository":"https://github.com/FlyFission/nuclear-grade-context-engineering","api":"/api/agent/skills/flyfission-nuclear-grade-context-engineering","install_api":"/api/skills/flyfission-nuclear-grade-context-engineering/install"},"meta":{"created_at":"2026-08-01T14:35:58.462312+00:00","updated_at":"2026-08-18T17:22:21.819119+00:00","agent_friendly":true}}