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  "title": "Keel",
  "description": "Keel is a gated Rust harness that runs AI coding-agent output through five sequential verification gates and emits cryptographically-linked evidence bundles requiring human sign-off before deploy. Open source: yes (Apache-2.0 per GitHub SPDX); self-hostable; pricing free. 2 stars, fresh (last push 2026-09-26) and unproven.",
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  "one_liner": "Keel runs AI coding-agent output through five sequential verification gates and emits tamper-evident evidence bundles requiring human sign-off before deploy.",
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  "self_hostable": "yes",
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  "who_its_for": "An engineering team letting AI coding agents (Claude Code, Codex, Copilot) touch a real codebase, who wants a gate before merge/deploy — sequential verification plus a tamper-evident evidence bundle a human must sign off on — rather than trusting agent output on faith.",
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    "note": "Apache-2.0 per GitHub SPDX (landing page advertises dual MIT OR Apache-2.0); 2 stars, created 2026-08-23, last push 2026-09-26 (fresh). A gated Rust harness (keel-harness) running AI coding-agent output through five sequential verification gates, emitting cryptographically-linked evidence bundles that require human sign-off before deploy; self-hostable (WebFetch 2026-09-26, github.com/daneb/keel)."
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  "caveats": "Verified from the repo README (WebFetch 2026-09-26); no independent testing. GitHub reports SPDX Apache-2.0 OR MIT and the landing page offers the dual license at your option; represented here as Apache-2.0. Load-bearing: 2 stars, fresh and unproven, so the five-gate pipeline and evidence-bundle integrity are the tool's design, not independently validated.",
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      "text": "Keel is a gated Rust harness that runs AI coding-agent output through five sequential verification gates and emits cryptographically-linked evidence bundles requiring human sign-off before deploy. Open source: yes (Apache-2.0 per GitHub SPDX); self-hostable; pricing free. It has 2 stars and is fresh (last push 2026-09-26) and unproven."
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      "heading_path": [
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      "text": "Keel is a gated Rust harness that runs AI coding-agent output through five sequential verification gates and emits cryptographically-linked evidence bundles requiring human sign-off before deploy. Open source: yes (Apache-2.0 per GitHub SPDX); self-hostable; pricing free. It has 2 stars and is fresh (last push 2026-09-26) and unproven.\n\nKeel (the `keel-harness` binary) sits above an agent loop — Claude Code, Codex, Copilot, Kiro — rather than doing inference itself; its tagline is \"keel makes AI coding agents prove their work.\" Agent output is pushed through five sequential gates, from buildability up to human sign-off, and the run produces an exportable, cryptographically-linked evidence bundle that stays verifiable offline. The design intent is auditable stopping conditions: nothing reaches deploy until the gates pass and a human signs the tamper-evident bundle. Open source: yes (Apache-2.0 per GitHub SPDX, dual-licensed MIT-or-Apache at the user's option); self-hostable; pricing free."
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      "text": "and the run produces an exportable, cryptographically-linked evidence bundle that stays verifiable offline. The design intent is auditable stopping conditions: nothing reaches deploy until the gates pass and a human signs the tamper-evident bundle. Open source: yes (Apache-2.0 per GitHub SPDX, dual-licensed MIT-or-Apache at the user's option); self-hostable; pricing free.\n\n- Apache-2.0 per GitHub SPDX (landing page advertises dual 'MIT OR Apache-2.0'); 2 stars, created 2026-08-23, last push 2026-09-26 (fresh); a gated Rust harness that runs agent output through five sequential verification gates and emits cryptographically-linked evidence bundles requiring human sign-off before deploy; self-hostable (WebFetch 2026-09-26).\n- Surfaced via studio discovery in the 2026-09-26 pass.\n- Anti-hype note — load-bearing: 2 stars, fresh and unproven; the gate pipeline and bundle integrity are the tool's design, not verified results. Landing page daneb.github.io/keel is distinct from the repo github.com/daneb/keel.\n- Curated from the GTM Stacker signal registry (2026-09-26 pass); license/facts independently verified 2026-09-26."
    },
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      "heading_path": [
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      "text": "in the 2026-09-26 pass. - Anti-hype note — load-bearing: 2 stars, fresh and unproven; the gate pipeline and bundle integrity are the tool's design, not verified results. Landing page daneb.github.io/keel is distinct from the repo github.com/daneb/keel. - Curated from the GTM Stacker signal registry (2026-09-26 pass); license/facts independently verified 2026-09-26.\n\nAs agents write more of the code behind GTM tooling — internal apps, integrations, automations — the risk shifts from \"can the agent write it\" to \"can you trust what it shipped.\" Keel's angle is a verification/reliability gate before code deploys: agent output must clear five sequential checks and produce a tamper-evident evidence bundle that a human signs off on, giving you an auditable record instead of a leap of faith. For a team running agent-driven engineering behind its go-to-market stack, that gate is where reliability gets enforced. Open source: yes (Apache-2.0); self-hostable; pricing free. The honest read: the mechanism is well-aimed, but at 2 stars and only weeks old the gates and bundle integrity are unproven — pilot it on a low-stakes pipeline and confirm the evidence bundles hold up before making it a merge blocker."
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