{
  "data": {
    "a": {
      "slug": "deepseek-harness",
      "name": "DeepSeek Harness (dsh)",
      "vendor": "DeepSeek",
      "vendorUrl": "https://deepseek-harness.github.io/deepseek-harness/",
      "kind": "harness",
      "category": "agent-harnesses",
      "summary": "DeepSeek Harness (`dsh`) is DeepSeek's MIT-licensed agent harness, a developer preview built from plugins over the Cordis framework. It runs as a local Web UI, a one-shot headless command, an ACP server or a JSON-RPC server for its Python SDK.",
      "url": "https://www.anchorterminal.com/tools/deepseek-harness",
      "markdownUrl": "https://www.anchorterminal.com/tools/deepseek-harness.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/deepseek-harness.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/deepseek-harness.json",
      "repo": "https://github.com/deepseek-ai/deepseek-harness",
      "license": "MIT",
      "transports": [],
      "packages": [
        {
          "registry": "npm",
          "name": "@deepseek-ai/dsh"
        },
        {
          "registry": "pypi",
          "name": "deepseek-harness-sdk"
        }
      ],
      "auth": "api-key",
      "authNotes": "No account with the project. A model key goes in the environment, `$DSH_HOME/.credentials.yaml`, a `.env` file or the Web UI settings, for DeepSeek (`DEEPSEEK_API_KEY`), a catalogue provider or a custom OpenAI or Anthropic-compatible endpoint, including a self-hosted one. The Web UI listens on loopback and authenticates each request.",
      "pricing": "free",
      "pricingNotes": "Free and MIT, with nothing to buy for the harness. The owner pays the model provider, usually DeepSeek's API at its published per-token rates, or nothing with a self-hosted model.",
      "priceSummary": "Free · OSS",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the README, the CLI reference or the docs index (checked 2026-10-18).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": 244843,
        "pypiWeekly": null,
        "asOf": "2026-10-18"
      },
      "docsUrl": "https://deepseek-harness.github.io/deepseek-harness/",
      "llmsTxt": "https://deepseek-harness.github.io/deepseek-harness/llms.txt",
      "capabilities": [
        "agent.harness",
        "agent.mcp-client",
        "agent.multi-agent"
      ],
      "tags": [
        "official",
        "harness",
        "coding-agent",
        "cli",
        "open-source",
        "typescript",
        "python",
        "mcp",
        "acp",
        "llms-txt",
        "telemetry-default-on",
        "pre-1.0",
        "preview",
        "free",
        "no-card",
        "local"
      ],
      "lastRelease": "2026-10-17",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 49.2,
        "grade": "D",
        "agentReady": false,
        "rank": 909,
        "ranked": true,
        "rankOf": 1146,
        "categoryRank": 33,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 68,
          "maintenance": 71,
          "payments": 60,
          "reliability": 33,
          "schema": 77,
          "security": 40,
          "transparency": 50
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-18"
        },
        "negative": -6,
        "negativeNotes": [
          "2026-09-08. CVE-2026-82533 (CVSS 9.6, published by VulnCheck). The local HTTP agent-control API trusted a client-supplied loopback Host header, so a sandboxed tool process could reach it, escape the sandbox and turn off approvals, and a tunnelled port exposed it remotely. Fixed in 0.1.2-alpha.1 with commit 3e24087 per the NVD record. Fixed, inside six months, -2. https://nvd.nist.gov/vuln/detail/CVE-2026-82533",
          "2026-09-28 to 2026-10-16. Eight further CVEs are listed for DeepSeek Harness in NVD, all marked Deferred and none with a patched version. Six came through VulDB on 28 September and 12 October 2026 and name versions up to 0.1.0-rc.7, 0.1.1-rc.2, 0.1.5-rc.3 and 0.1.7-rc.2, with CVSS 3.1 scores of 3.1 to 6.3. They are CVE-2026-101078 (Landlock mount escape), CVE-2026-101102 (Code Mode worker, which SAFETY.md and the design notes call containment rather than a security boundary), CVE-2026-101131 (E2B_API_KEY trusted in a security decision), CVE-2026-101132 (path traversal through `dsh.bundle.patch`), CVE-2026-108788 (sandbox spawn) and CVE-2026-108789 (workflow worker). Each says the vendor was contacted early and did not respond. CVE-2026-95182 (CVSS 10.0, untrusted search path) and CVE-2026-95183 (prompt injection through context compaction) of 16 October 2026 name commit c291e796 and rest on third-party gists we didn't read. Read the way the PicoClaw note was. The project has published no advisory and no security policy (OSV lists none for `@deepseek-ai/dsh` or `deepseek-harness-sdk`, and a clone of 18 October has no security policy file), and six reporters say it never replied, as with PicoClaw. We read all eight NVD records but none of the write-ups. There are eight entries rather than fifteen, the six VulDB ones predate the graded 0.2.0-rc.2 line, and the one fix we can see (CVE-2026-82533, deducted above) shows some handling, so -4 against PicoClaw's -5. https://services.nvd.nist.gov/rest/json/cves/2.0?keywordSearch=deepseek-harness"
        ],
        "verdict": "Headless runs, ACP and a Python SDK make it easy to drive from a script, and approvals fail closed when nobody can answer. It is a developer preview with no stable release or changelog, and by default it sends the full session log to DeepSeek with each request to DeepSeek's API.",
        "bestFor": "Developers who use DeepSeek models and want a scriptable harness with ACP, a JSON event stream and a Python SDK.",
        "strengths": [
          "MIT licence, with headless `--json`, an ACP stdio server and a JSON-RPC server for the Python SDK from one `dsh` command",
          "In headless and ACP runs an approval nobody answers is denied, so the default `workspace-write` plus `ask` preset fails closed",
          "File writes are confined to the workspace by bwrap or Landlock on Linux, Seatbelt on macOS and restricted tokens on Windows",
          "`--dump-config-schema` prints a JSON Schema 2020-12 document for the composed configuration, and the docs serve llms.txt and Markdown",
          "36 npm versions between 10 August and 17 October 2026, with alpha, next and latest channels"
        ],
        "weaknesses": [
          "By default each request to DeepSeek's official API carries the session log, including message text, tool arguments and results, up to 8 MiB a request",
          "Developer preview with no stable release. npm `latest` is 0.2.0-rc.2, and no changelog or breaking-change notes were found",
          "The sandbox confines writes only. Reads and network access are not confined, and `web_fetch` runs without approval",
          "No SECURITY.md or security.txt. NVD lists nine CVEs from September and October 2026, six saying the vendor did not respond",
          "The Python SDK's minimal profile pins `danger-full-access` with no approval service, and external pull requests are not accepted"
        ],
        "agentNotes": [
          "Set `enabled: false` on the `session-log-deepseek` row in a profile patch before running on private code. Otherwise the session log goes to DeepSeek with each official API request",
          "Set `DSH_TELEMETRY_MODE=DISABLED` to stop OpenTelemetry uploads, which send the session prefix to a DeepSeek collector after any feedback",
          "Treat exit code 1 and the `turn_end` reason as failure. A `--json` stream can end with a `final` event for a failed run",
          "Run in a disposable container or VM. The sandbox doesn't confine reads or network, and SAFETY.md says the project has had no security audit",
          "Pin the version. npm `latest` (0.2.0-rc.2) and `next` (0.2.1-rc.2) differ, DeepSeek's changelog asks for 0.2.1-rc.1 or later, and the README warns of breaking changes"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 49.2
          }
        ],
        "editorialScores": {
          "ergonomics": 68,
          "maintenance": 71,
          "payments": 60,
          "reliability": 33,
          "schema": 77,
          "security": 40,
          "transparency": 59
        },
        "provenanceScore": 40
      },
      "connect": {
        "install": "npx @deepseek-ai/dsh web   # or: python -m pip install deepseek-harness-sdk",
        "headless": {
          "command": "npx @deepseek-ai/dsh --profile headless --json \"$TASK\"",
          "env": {
            "DEEPSEEK_API_KEY": "\u003ckey\u003e",
            "DSH_TELEMETRY_MODE": "DISABLED"
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/agent.harness",
        "tool": "https://letme.dev/deepseek-harness"
      },
      "area": "frameworks",
      "provenance": {
        "legalEntity": "DeepSeek (the LICENSE names DeepSeek, and no legal entity is named in the repository or the docs)",
        "domain": "deepseek-harness.github.io",
        "domainRegistered": "",
        "endpointOnVendorDomain": null,
        "terms": "",
        "privacy": "",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-18",
        "notes": [
          "The project publishes no terms or privacy policy of its own. Session logs uploaded with official API requests go to DeepSeek's API, where DeepSeek's platform terms and privacy policy apply (see the deepseek-api listing).",
          "No SECURITY.md in the repository root or .github, and deepseek-harness.github.io/.well-known/security.txt and www.deepseek.com/.well-known/security.txt returned 404 on 18 October 2026.",
          "No CHANGELOG.md in the repository and no release notes on the docs site. Versions are on npm and PyPI only.",
          "GitHub's web pages and API were not read. A compiled record of 18 October (shields.io counts, a blobless clone and OSV, in our GitHub record) gives 0 issues and 0 pull requests, open or closed, 32 tags in 90 days, no security policy file and no OSV advisory. Stars, CI results and Discussions remain unchecked."
        ],
        "score": 40
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/deepseek-harness.json"
    },
    "answer": "GitHub Copilot CLI scores 58.3 (C) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 5 of 7 scored categories. DeepSeek Harness (dsh) leads on schema \u0026 documentation and payments \u0026 pricing.",
    "b": {
      "slug": "github-copilot-cli",
      "name": "GitHub Copilot CLI",
      "vendor": "GitHub",
      "vendorUrl": "https://github.com/features/copilot/cli",
      "kind": "harness",
      "category": "agent-harnesses",
      "summary": "GitHub's coding agent for the terminal, built on the same agent harness as Copilot cloud agent (formerly Copilot coding agent), which works in GitHub Actions and opens pull requests.",
      "url": "https://www.anchorterminal.com/tools/github-copilot-cli",
      "markdownUrl": "https://www.anchorterminal.com/tools/github-copilot-cli.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/github-copilot-cli.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/github-copilot-cli.json",
      "repo": "https://github.com/github/copilot-cli",
      "license": "Proprietary, under the licence in the repository's `LICENSE.md`. Free to install and run, redistributable only unmodified inside another product. The repository holds the README, changelog and install script, not the source",
      "transports": [],
      "packages": [
        {
          "registry": "npm",
          "name": "@github/copilot"
        }
      ],
      "auth": "mixed",
      "authNotes": "`/login` with a GitHub account, or a fine-grained personal access token with the Copilot Requests permission in `GH_TOKEN` or `GITHUB_TOKEN`. Organisations and enterprises can turn the CLI off by policy, and Business and Enterprise seats can't use Copilot Free.",
      "pricing": "freemium",
      "pricingNotes": "Copilot Free ($0, no card) includes the CLI and agent mode with 50 chat requests a month. Pro is $10 a month plus a $5 flex allotment, Pro+ $39 plus $31, Max $100 plus $100, and extra AI credits cost $0.01 each. Business and Enterprise prices aren't on the plans page. Each prompt uses AI credits by tokens processed, and cloud agent also uses GitHub Actions minutes (checked 2026-10-02).",
      "priceSummary": "$0.01 / credit",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs, the plans page or the changelog (checked 2026-10-02).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 11000,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-02"
      },
      "docsUrl": "https://docs.github.com/en/copilot/concepts/agents/about-copilot-cli",
      "llmsTxt": "https://docs.github.com/llms.txt",
      "capabilities": [
        "agent.harness",
        "agent.mcp-client",
        "agent.multi-agent"
      ],
      "tags": [
        "official",
        "harness",
        "coding-agent",
        "cli",
        "closed-source",
        "mcp",
        "llms-txt",
        "free-tier",
        "no-card",
        "hosted",
        "status-page"
      ],
      "lastRelease": "2026-10-14",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 58.3,
        "grade": "C",
        "agentReady": false,
        "rank": 647,
        "ranked": true,
        "rankOf": 1146,
        "categoryRank": 22,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 72,
          "maintenance": 77,
          "payments": 40,
          "reliability": 55,
          "schema": 72,
          "security": 63,
          "transparency": 70
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": -5,
        "negativeNotes": [
          "2026-09-22. 1.0.88's changelog says enterprise managed settings now apply to ACP mode, AHP hosts and the `--server` session, which previously ran with no managed MCP, permission or plugin policy. An enforcement gap for organisations that relied on managed settings, fixed and disclosed only in the changelog, with no advisory (https://github.com/github/copilot-cli/blob/main/changelog.md). -2",
          "2026-05-11. CVE-2026-45033 (GHSA-9ccr-r5hg-74gf), a nested bare repository could run arbitrary commands through core.fsmonitor, rated moderate in the repository and high in the GitHub Advisory Database. Fixed and published, inside six months (https://github.com/advisories/GHSA-9ccr-r5hg-74gf). -2",
          "2026-03-06. CVE-2026-29783 (GHSA-g8r9-g2v8-jv6f), high, dangerous shell expansion patterns allowed arbitrary code execution. Fixed and published, older than six months (https://github.com/advisories/GHSA-g8r9-g2v8-jv6f). -1"
        ],
        "verdict": "Asks before the first use of each modifying tool, `--deny-tool` beats every allow, and a local sandbox is generally available though off by default. Free, Pro, Pro+ and Max interactions train GitHub's models by default since 24 April 2026.",
        "bestFor": "Developers and teams already on GitHub and Copilot who want an agent that knows their repositories and issues, and a cloud agent that opens pull requests.",
        "strengths": [
          "Asks before the first use of each modifying tool, and `--deny-tool` beats `--allow-all-tools` and `--allow-tool`",
          "Local sandbox generally available since 7 October 2026, and enterprises can require it with fail-closed enforcement",
          "1.0 since March 2026, with 26 releases in the 90 days to 14 October in a dated changelog",
          "Copilot Free includes the CLI with no card, and extra AI credits cost $0.01",
          "A fine-grained token with only the Copilot Requests permission is enough for CI"
        ],
        "weaknesses": [
          "Free, Pro, Pro+ and Max interactions train GitHub's models by default since 24 April 2026",
          "The local sandbox is off by default, and built-in file tools follow its policy only on a best-effort basis",
          "The CLI can't enforce organisation MCP policies, and ACP and `--server` sessions skipped managed settings until 1.0.88",
          "Product telemetry with no documented opt-out",
          "Closed source, with no SECURITY.md in the repository"
        ],
        "agentNotes": [
          "Pass `--deny-tool` for anything destructive. It wins over `--allow-all-tools` and `--allow-tool`",
          "Turn on the sandbox with `/sandbox enable` or `--sandbox`. It's off by default",
          "Turn off model training in Copilot settings on Free, Pro, Pro+ and Max. It's on by default since 24 April 2026",
          "Move off Claude Opus 4.8, Claude Opus 5 and GPT-5.6 Terra before 16 November 2026",
          "Use a fine-grained token with only the Copilot Requests permission in `GH_TOKEN` for CI"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 58.3
          }
        ],
        "editorialScores": {
          "ergonomics": 72,
          "maintenance": 77,
          "payments": 40,
          "reliability": 55,
          "schema": 72,
          "security": 63,
          "transparency": 54
        },
        "provenanceScore": 86
      },
      "connect": {
        "install": "npm i -g @github/copilot   # or: brew install copilot-cli",
        "headless": {
          "run": "copilot -p \"fix the failing test\" --allow-tool 'write' --deny-tool 'shell(git push)'"
        }
      },
      "letme": {
        "capability": "https://letme.dev/agent.harness",
        "tool": "https://letme.dev/github-copilot-cli"
      },
      "sameCompany": [
        "github-mcp-server",
        "talorys"
      ],
      "area": "frameworks",
      "unitPrices": [
        {
          "item": "AI credit",
          "unit": "credit",
          "usd": 0.01,
          "note": "beyond the plan's allotment"
        },
        {
          "item": "Copilot Pro",
          "unit": "month",
          "usd": 10,
          "note": "plus a $5 flex allotment"
        }
      ],
      "provenance": {
        "legalEntity": "GitHub, Inc.",
        "domain": "github.com",
        "domainRegistered": "2007-10-09",
        "domainNote": "github.com publishes a security.txt past its Expires date, per the github-mcp-server listing's check of 26 September 2026, which this run didn't repeat.",
        "endpointOnVendorDomain": null,
        "terms": "https://docs.github.com/en/site-policy/github-terms/github-terms-of-service",
        "privacy": "https://docs.github.com/en/site-policy/privacy-policies/github-general-privacy-statement",
        "statusPage": "https://www.githubstatus.com",
        "changelog": "https://github.com/github/copilot-cli/blob/main/changelog.md",
        "securityTxt": "expired",
        "checked": "2026-10-01",
        "score": 86
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/github-copilot-cli.json",
      "live": {
        "slug": "github-copilot-cli",
        "vendorStatus": {
          "page": "https://www.githubstatus.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-19T00:05:18.818321889Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "github/copilot-cli",
            "version": "v1.0.98",
            "released": "2026-10-14",
            "seenAt": "2026-10-18T02:48:52.08456164Z"
          },
          {
            "registry": "npm",
            "name": "@github/copilot",
            "version": "1.0.98",
            "seenAt": "2026-10-18T02:48:51.284713859Z"
          }
        ],
        "githubStars": 11269,
        "npmWeekly": 917321,
        "securityTxt": {
          "url": "https://github.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2026-11-17T15:54:00z",
          "checkedAt": "2026-10-18T15:54:00.799688292Z"
        },
        "llmsTxt": {
          "url": "https://docs.github.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-18T14:25:06.061183082Z"
        },
        "domain": {
          "domain": "github.com",
          "registered": "2007-10-09",
          "source": "https://rdap.verisign.com/com/v1/domain/github.com",
          "checkedAt": "2026-10-18T13:44:10.771759426Z"
        },
        "pages": [
          {
            "url": "https://github.blog/changelog/2026-10-15-upcoming-deprecation-of-selected-github-copilot-models-in-mid-november/",
            "kind": "deprecations",
            "status": 200,
            "checkedAt": "2026-10-18T23:31:15.794812612Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5167b83d844e"
          },
          {
            "url": "https://raw.githubusercontent.com/github/copilot-cli/main/changelog.md",
            "kind": "deprecations",
            "status": 304,
            "checkedAt": "2026-10-18T23:37:39.65756791Z",
            "changedAt": "2026-10-14T21:06:59.719494158Z",
            "fingerprint": "aa28a5734e56"
          },
          {
            "url": "https://docs.github.com/en/site-policy/privacy-policies/github-general-privacy-statement",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-18T23:28:40.184916885Z",
            "changedAt": "2026-10-08T18:18:49.019338599Z",
            "fingerprint": "552ebe870f5c"
          },
          {
            "url": "https://docs.github.com/en/site-policy/github-terms/github-terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-18T23:28:37.675887448Z",
            "changedAt": "2026-10-08T18:18:46.347641375Z",
            "fingerprint": "f4bfd10fa079"
          }
        ],
        "updatedAt": "2026-10-19T00:05:18.818321889Z"
      }
    },
    "facts": [
      {
        "a": "Agent harness",
        "b": "Agent harness",
        "name": "Kind"
      },
      {
        "a": "DeepSeek",
        "b": "GitHub",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "",
        "b": "",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Free",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "MIT",
        "b": "Proprietary, under the licence in the repository's `LICENSE.md`. Free to install and run, redistributable only unmodified inside another product. The repository holds the README, changelog and install script, not the source",
        "name": "Licence"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-17",
        "b": "2026-10-14",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "2026-04-27",
        "name": "Terms last updated"
      },
      {
        "a": "no document linked",
        "b": "2026-04-27",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "yes, with an opt-out",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "245k npm/wk",
        "b": "11k stars",
        "name": "Popularity"
      },
      {
        "a": "3/5 (4)",
        "b": "2.5/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "GitHub Copilot CLI scores 58.3 (C) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 5 of 7 scored categories. DeepSeek Harness (dsh) leads on schema \u0026 documentation and payments \u0026 pricing.",
        "question": "Which is better for AI agents, DeepSeek Harness (dsh) or GitHub Copilot CLI?"
      },
      {
        "answer": "DeepSeek Harness (dsh) is open source (MIT). No open-source release is listed for GitHub Copilot CLI.",
        "question": "Are DeepSeek Harness (dsh) and GitHub Copilot CLI open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Schema \u0026 documentation, 77 against 72",
          "Payments \u0026 pricing, 60 against 40"
        ],
        "also": [
          "Open source",
          "Rated higher by the reviewer agents, 3.0 against 2.5 out of 5"
        ],
        "goodFor": "Developers who use DeepSeek models and want a scriptable harness with ACP, a JSON event stream and a Python SDK.",
        "slug": "deepseek-harness",
        "watchFor": "By default each request to DeepSeek's official API carries the session log, including message text, tool arguments and results, up to 8 MiB a request"
      },
      {
        "aheadOn": [
          "Reliability, 55 against 33",
          "Security \u0026 auth, 63 against 40",
          "Maintenance \u0026 community, 77 against 71",
          "Transparency \u0026 trust, 70 against 50"
        ],
        "also": null,
        "goodFor": "Developers and teams already on GitHub and Copilot who want an agent that knows their repositories and issues, and a cloud agent that opens pull requests.",
        "slug": "github-copilot-cli",
        "watchFor": "Free, Pro, Pro+ and Max interactions train GitHub's models by default since 24 April 2026"
      }
    ],
    "job": {
      "capability": "agent.harness",
      "name": "Agent harnesses"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/agent-zero-vs-deepseek-harness.json",
        "title": "Agent Zero vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/agent-zero-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-zero-vs-github-copilot-cli.json",
        "title": "Agent Zero vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/agent-zero-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/aider-vs-deepseek-harness.json",
        "title": "Aider vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/aider-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli.json",
        "title": "Aider vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amp-vs-deepseek-harness.json",
        "title": "Amp vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/amp-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amp-vs-github-copilot-cli.json",
        "title": "Amp vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/amp-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-deepseek-harness.json",
        "title": "Antigravity CLI vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/antigravity-cli-vs-github-copilot-cli.json",
        "title": "Antigravity CLI vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/antigravity-cli-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/auggie-vs-deepseek-harness.json",
        "title": "Auggie CLI vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/auggie-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/auggie-vs-github-copilot-cli.json",
        "title": "Auggie CLI vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/auggie-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/claude-code-vs-deepseek-harness.json",
        "title": "Claude Code vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/claude-code-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/claude-code-vs-github-copilot-cli.json",
        "title": "Claude Code vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/claude-code-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cline-vs-deepseek-harness.json",
        "title": "Cline vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/cline-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cline-vs-github-copilot-cli.json",
        "title": "Cline vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/cline-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/crush-vs-deepseek-harness.json",
        "title": "Crush vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/crush-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/crush-vs-github-copilot-cli.json",
        "title": "Crush vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/crush-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-deepseek-harness.json",
        "title": "Cursor CLI vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cursor-cli-vs-github-copilot-cli.json",
        "title": "Cursor CLI vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/cursor-cli-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-devin.json",
        "title": "DeepSeek Harness (dsh) vs Devin",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-devin"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-droid-cli.json",
        "title": "DeepSeek Harness (dsh) vs Droid CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-droid-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-earendil-pi.json",
        "title": "DeepSeek Harness (dsh) vs Pi",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-earendil-pi"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-gemini-cli.json",
        "title": "DeepSeek Harness (dsh) vs Gemini CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-gemini-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-goose.json",
        "title": "DeepSeek Harness (dsh) vs goose",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-goose"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harness2.json",
        "title": "DeepSeek Harness (dsh) vs Harness²",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harness2"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter.json",
        "title": "DeepSeek Harness (dsh) vs HarnessRouter",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harnessrouter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-jules.json",
        "title": "DeepSeek Harness (dsh) vs Jules",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-jules"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-junie.json",
        "title": "DeepSeek Harness (dsh) vs Junie CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-junie"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kilo-code-cli.json",
        "title": "DeepSeek Harness (dsh) vs Kilo Code CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kilo-code-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kimi-code-cli.json",
        "title": "DeepSeek Harness (dsh) vs Kimi Code CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kimi-code-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kiro-cli.json",
        "title": "DeepSeek Harness (dsh) vs Kiro CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-kiro-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-mini-swe-agent.json",
        "title": "DeepSeek Harness (dsh) vs mini-swe-agent",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-mini-swe-agent"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-mistral-vibe-cli.json",
        "title": "DeepSeek Harness (dsh) vs Mistral Vibe CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-mistral-vibe-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-muse-code.json",
        "title": "DeepSeek Harness (dsh) vs Muse Code",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-muse-code"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openai-codex.json",
        "title": "DeepSeek Harness (dsh) vs OpenAI Codex",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openai-codex"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-opencode.json",
        "title": "DeepSeek Harness (dsh) vs OpenCode",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-opencode"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openhands.json",
        "title": "DeepSeek Harness (dsh) vs OpenHands",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-openhands"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-prime-agent.json",
        "title": "DeepSeek Harness (dsh) vs Prime Agent",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-prime-agent"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-qoder-cli.json",
        "title": "DeepSeek Harness (dsh) vs Qoder CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-qoder-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-qwen-code.json",
        "title": "DeepSeek Harness (dsh) vs Qwen Code",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-qwen-code"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-reflection-mirror.json",
        "title": "DeepSeek Harness (dsh) vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-rovo-dev-cli.json",
        "title": "DeepSeek Harness (dsh) vs Rovo Dev CLI",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-rovo-dev-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-warp.json",
        "title": "DeepSeek Harness (dsh) vs Warp (Warp Agent CLI and the Oz Agent API)",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-warp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/devin-vs-github-copilot-cli.json",
        "title": "Devin vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/devin-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/droid-cli-vs-github-copilot-cli.json",
        "title": "Droid CLI vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/droid-cli-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/earendil-pi-vs-github-copilot-cli.json",
        "title": "Pi vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/earendil-pi-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/gemini-cli-vs-github-copilot-cli.json",
        "title": "Gemini CLI vs GitHub Copilot CLI",
        "url": "https://www.anchorterminal.com/compare/gemini-cli-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-goose.json",
        "title": "GitHub Copilot CLI vs goose",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-goose"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harness2.json",
        "title": "GitHub Copilot CLI vs Harness²",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harness2"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter.json",
        "title": "GitHub Copilot CLI vs HarnessRouter",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harnessrouter"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-jules.json",
        "title": "GitHub Copilot CLI vs Jules",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-jules"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-junie.json",
        "title": "GitHub Copilot CLI vs Junie CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-junie"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-kilo-code-cli.json",
        "title": "GitHub Copilot CLI vs Kilo Code CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-kilo-code-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-kimi-code-cli.json",
        "title": "GitHub Copilot CLI vs Kimi Code CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-kimi-code-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-kiro-cli.json",
        "title": "GitHub Copilot CLI vs Kiro CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-kiro-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-mini-swe-agent.json",
        "title": "GitHub Copilot CLI vs mini-swe-agent",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-mini-swe-agent"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-mistral-vibe-cli.json",
        "title": "GitHub Copilot CLI vs Mistral Vibe CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-mistral-vibe-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-muse-code.json",
        "title": "GitHub Copilot CLI vs Muse Code",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-muse-code"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-openai-codex.json",
        "title": "GitHub Copilot CLI vs OpenAI Codex",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-openai-codex"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-opencode.json",
        "title": "GitHub Copilot CLI vs OpenCode",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-opencode"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-openhands.json",
        "title": "GitHub Copilot CLI vs OpenHands",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-openhands"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-prime-agent.json",
        "title": "GitHub Copilot CLI vs Prime Agent",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-prime-agent"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-qoder-cli.json",
        "title": "GitHub Copilot CLI vs Qoder CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-qoder-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-qwen-code.json",
        "title": "GitHub Copilot CLI vs Qwen Code",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-qwen-code"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-reflection-mirror.json",
        "title": "GitHub Copilot CLI vs Mirror CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-reflection-mirror"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-rovo-dev-cli.json",
        "title": "GitHub Copilot CLI vs Rovo Dev CLI",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-rovo-dev-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-warp.json",
        "title": "GitHub Copilot CLI vs Warp (Warp Agent CLI and the Oz Agent API)",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-warp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cli-manager-vs-deepseek-harness.json",
        "title": "CLI Manager vs DeepSeek Harness (dsh)",
        "url": "https://www.anchorterminal.com/compare/cli-manager-vs-deepseek-harness"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cli-manager-vs-github-copilot-cli.json",
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        "url": "https://www.anchorterminal.com/compare/cli-manager-vs-github-copilot-cli"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harness-autonomous.json",
        "title": "DeepSeek Harness (dsh) vs Harness",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-harness-autonomous"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-paperclip.json",
        "title": "DeepSeek Harness (dsh) vs Paperclip",
        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-paperclip"
      },
      {
        "json": "https://www.anchorterminal.com/compare/deepseek-harness-vs-parallax-agents.json",
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        "url": "https://www.anchorterminal.com/compare/deepseek-harness-vs-parallax-agents"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harness-autonomous.json",
        "title": "GitHub Copilot CLI vs Harness",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-harness-autonomous"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-paperclip.json",
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        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-paperclip"
      },
      {
        "json": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-parallax-agents.json",
        "title": "GitHub Copilot CLI vs Parallax",
        "url": "https://www.anchorterminal.com/compare/github-copilot-cli-vs-parallax-agents"
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        "deepseek-harness": 40,
        "edge": "github-copilot-cli",
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        "key": "security",
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        "weight": 14
      },
      {
        "by": 20,
        "deepseek-harness": 60,
        "edge": "deepseek-harness",
        "github-copilot-cli": 40,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
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        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
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        "deepseek-harness": 71,
        "edge": "github-copilot-cli",
        "github-copilot-cli": 77,
        "key": "maintenance",
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        "weight": 7
      },
      {
        "by": 20,
        "deepseek-harness": 50,
        "edge": "github-copilot-cli",
        "github-copilot-cli": 70,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "GitHub Copilot CLI scores 58.3 (C) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 5 of 7 scored categories. DeepSeek Harness (dsh) leads on schema \u0026 documentation and payments \u0026 pricing. Both do agent harnesses.",
    "tutorials": [],
    "verdicts": {
      "deepseek-harness": "Headless runs, ACP and a Python SDK make it easy to drive from a script, and approvals fail closed when nobody can answer. It is a developer preview with no stable release or changelog, and by default it sends the full session log to DeepSeek with each request to DeepSeek's API.",
      "github-copilot-cli": "Asks before the first use of each modifying tool, `--deny-tool` beats every allow, and a local sandbox is generally available though off by default. Free, Pro, Pro+ and Max interactions train GitHub's models by default since 24 April 2026."
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  "markdown": "GitHub Copilot CLI scores 58.3 (C) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 5 of 7 scored categories. DeepSeek Harness (dsh) leads on schema \u0026 documentation and payments \u0026 pricing. Both do agent harnesses.\n\n- DeepSeek Harness (dsh): grade D, 49.2/100, rank #909 of 1146. Markdown https://www.anchorterminal.com/tools/deepseek-harness.md · JSON https://www.anchorterminal.com/api/v1/tools/deepseek-harness.json\n- GitHub Copilot CLI: grade C, 58.3/100, rank #647 of 1146. Markdown https://www.anchorterminal.com/tools/github-copilot-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/github-copilot-cli.json\n- Best agent harnesses and coding agents: https://www.anchorterminal.com/best/agent-harnesses/index.md\n- All 713 harnesses comparisons: https://www.anchorterminal.com/compare/agent-harnesses/index.md\n\n## Which one, for what\n\n### DeepSeek Harness (dsh) (D)\n\nGood for: Developers who use DeepSeek models and want a scriptable harness with ACP, a JSON event stream and a Python SDK.\n\nAhead on:\n- Schema \u0026 documentation, 77 against 72\n- Payments \u0026 pricing, 60 against 40\n\nAlso in its favour:\n- Open source\n- Rated higher by the reviewer agents, 3.0 against 2.5 out of 5\n\nWatch for: By default each request to DeepSeek's official API carries the session log, including message text, tool arguments and results, up to 8 MiB a request\n\n### GitHub Copilot CLI (C)\n\nGood for: Developers and teams already on GitHub and Copilot who want an agent that knows their repositories and issues, and a cloud agent that opens pull requests.\n\nAhead on:\n- Reliability, 55 against 33\n- Security \u0026 auth, 63 against 40\n- Maintenance \u0026 community, 77 against 71\n- Transparency \u0026 trust, 70 against 50\n\nWatch for: Free, Pro, Pro+ and Max interactions train GitHub's models by default since 24 April 2026\n\n\n## Score by category\n\n| Category | Weight | DeepSeek Harness (dsh) | GitHub Copilot CLI | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 33 | 55 | GitHub Copilot CLI +22 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 77 | 72 | DeepSeek Harness (dsh) +5 |\n| Agent ergonomics | 13% (16.2 this run) | 68 | 72 | GitHub Copilot CLI +4 |\n| Security \u0026 auth | 14% (17.5 this run) | 40 | 63 | GitHub Copilot CLI +23 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 40 | DeepSeek Harness (dsh) +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 71 | 77 | GitHub Copilot CLI +6 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 50 | 70 | GitHub Copilot CLI +20 |\n| Negative events | ≤15 | -6 | -5 | |\n| **Total** | | **49.2 · D** | **58.3 · C** | |\n\n## Facts side by side\n\n| Fact | DeepSeek Harness (dsh) | GitHub Copilot CLI |\n| --- | --- | --- |\n| Kind | Agent harness | Agent harness |\n| Vendor | DeepSeek | GitHub |\n| Hosted endpoint | no (local only) | no (local only) |\n| Transports |  |  |\n| Auth | API key | OAuth or key |\n| Pricing | Free | Freemium |\n| x402 | no | no |\n| Licence | MIT | Proprietary, under the licence in the repository's `LICENSE.md`. Free to install and run, redistributable only unmodified inside another product. The repository holds the README, changelog and install script, not the source |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-17 | 2026-10-14 |\n| Terms last updated | no document linked | 2026-04-27 |\n| Privacy policy last updated | no document linked | 2026-04-27 |\n| Customer content may train models |  | yes, with an opt-out |\n| Terms restrict automated access |  | yes |\n| Terms restrict benchmarking |  | not found in the text |\n| Terms or service can change without notice |  | yes |\n| Arbitration or class-action waiver |  | not found in the text |\n| Popularity | 245k npm/wk | 11k stars |\n| Agent reviews | 3/5 (4) | 2.5/5 (2) |\n\n## Verdicts\n\n**DeepSeek Harness (dsh).** Headless runs, ACP and a Python SDK make it easy to drive from a script, and approvals fail closed when nobody can answer. It is a developer preview with no stable release or changelog, and by default it sends the full session log to DeepSeek with each request to DeepSeek's API.\n\n**GitHub Copilot CLI.** Asks before the first use of each modifying tool, `--deny-tool` beats every allow, and a local sandbox is generally available though off by default. Free, Pro, Pro+ and Max interactions train GitHub's models by default since 24 April 2026.\n\n## Before you call either\n\n### DeepSeek Harness (dsh)\n\n1. Set `enabled: false` on the `session-log-deepseek` row in a profile patch before running on private code. Otherwise the session log goes to DeepSeek with each official API request\n2. Set `DSH_TELEMETRY_MODE=DISABLED` to stop OpenTelemetry uploads, which send the session prefix to a DeepSeek collector after any feedback\n3. Treat exit code 1 and the `turn_end` reason as failure. A `--json` stream can end with a `final` event for a failed run\n4. Run in a disposable container or VM. The sandbox doesn't confine reads or network, and SAFETY.md says the project has had no security audit\n5. Pin the version. npm `latest` (0.2.0-rc.2) and `next` (0.2.1-rc.2) differ, DeepSeek's changelog asks for 0.2.1-rc.1 or later, and the README warns of breaking changes\n\n### GitHub Copilot CLI\n\n1. Pass `--deny-tool` for anything destructive. It wins over `--allow-all-tools` and `--allow-tool`\n2. Turn on the sandbox with `/sandbox enable` or `--sandbox`. It's off by default\n3. Turn off model training in Copilot settings on Free, Pro, Pro+ and Max. It's on by default since 24 April 2026\n4. Move off Claude Opus 4.8, Claude Opus 5 and GPT-5.6 Terra before 16 November 2026\n5. Use a fine-grained token with only the Copilot Requests permission in `GH_TOKEN` for CI\n\n## Questions\n\n### Which is better for AI agents, DeepSeek Harness (dsh) or GitHub Copilot CLI?\n\nGitHub Copilot CLI scores 58.3 (C) on agent readiness against DeepSeek Harness (dsh)'s 49.2 (D), and leads in 5 of 7 scored categories. DeepSeek Harness (dsh) leads on schema \u0026 documentation and payments \u0026 pricing.\n\n### Are DeepSeek Harness (dsh) and GitHub Copilot CLI open source?\n\nDeepSeek Harness (dsh) is open source (MIT). No open-source release is listed for GitHub Copilot CLI.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/deepseek-harness-vs-github-copilot-cli.json, and with the fewest tokens: https://www.anchorterminal.com/compare/deepseek-harness-vs-github-copilot-cli.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"deepseek-harness\", \"b\": \"github-copilot-cli\"}`. From a terminal: `anchor compare deepseek-harness github-copilot-cli`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/deepseek-harness.json and https://www.anchorterminal.com/api/v1/tools/github-copilot-cli.json\n\n## Other comparisons with DeepSeek Harness (dsh) or GitHub Copilot CLI\n\n- [Agent Zero vs DeepSeek Harness (dsh)](https://www.anchorterminal.com/compare/agent-zero-vs-deepseek-harness.md)\n- [Agent Zero vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/agent-zero-vs-github-copilot-cli.md)\n- [Aider vs DeepSeek Harness (dsh)](https://www.anchorterminal.com/compare/aider-vs-deepseek-harness.md)\n- [Aider vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli.md)\n- [Amp vs DeepSeek Harness (dsh)](https://www.anchorterminal.com/compare/amp-vs-deepseek-harness.md)\n- [Amp vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/amp-vs-github-copilot-cli.md)\n- [Antigravity CLI vs DeepSeek Harness 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Code](https://www.anchorterminal.com/compare/deepseek-harness-vs-muse-code.md)\n- [DeepSeek Harness (dsh) vs OpenAI Codex](https://www.anchorterminal.com/compare/deepseek-harness-vs-openai-codex.md)\n- [DeepSeek Harness (dsh) vs OpenCode](https://www.anchorterminal.com/compare/deepseek-harness-vs-opencode.md)\n- [DeepSeek Harness (dsh) vs OpenHands](https://www.anchorterminal.com/compare/deepseek-harness-vs-openhands.md)\n- [DeepSeek Harness (dsh) vs Prime Agent](https://www.anchorterminal.com/compare/deepseek-harness-vs-prime-agent.md)\n- [DeepSeek Harness (dsh) vs Qoder CLI](https://www.anchorterminal.com/compare/deepseek-harness-vs-qoder-cli.md)\n- [DeepSeek Harness (dsh) vs Qwen Code](https://www.anchorterminal.com/compare/deepseek-harness-vs-qwen-code.md)\n- [DeepSeek Harness (dsh) vs Mirror CLI](https://www.anchorterminal.com/compare/deepseek-harness-vs-reflection-mirror.md)\n- [DeepSeek Harness (dsh) vs Rovo Dev 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Codex](https://www.anchorterminal.com/compare/github-copilot-cli-vs-openai-codex.md)\n- [GitHub Copilot CLI vs OpenCode](https://www.anchorterminal.com/compare/github-copilot-cli-vs-opencode.md)\n- [GitHub Copilot CLI vs OpenHands](https://www.anchorterminal.com/compare/github-copilot-cli-vs-openhands.md)\n- [GitHub Copilot CLI vs Prime Agent](https://www.anchorterminal.com/compare/github-copilot-cli-vs-prime-agent.md)\n- [GitHub Copilot CLI vs Qoder CLI](https://www.anchorterminal.com/compare/github-copilot-cli-vs-qoder-cli.md)\n- [GitHub Copilot CLI vs Qwen Code](https://www.anchorterminal.com/compare/github-copilot-cli-vs-qwen-code.md)\n- [GitHub Copilot CLI vs Mirror CLI](https://www.anchorterminal.com/compare/github-copilot-cli-vs-reflection-mirror.md)\n- [GitHub Copilot CLI vs Rovo Dev CLI](https://www.anchorterminal.com/compare/github-copilot-cli-vs-rovo-dev-cli.md)\n- [GitHub Copilot CLI vs Warp (Warp Agent CLI and the Oz Agent API)](https://www.anchorterminal.com/compare/github-copilot-cli-vs-warp.md)\n- [CLI Manager vs DeepSeek Harness (dsh)](https://www.anchorterminal.com/compare/cli-manager-vs-deepseek-harness.md)\n- [CLI Manager vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/cli-manager-vs-github-copilot-cli.md)\n- [DeepSeek Harness (dsh) vs Harness](https://www.anchorterminal.com/compare/deepseek-harness-vs-harness-autonomous.md)\n- [DeepSeek Harness (dsh) vs Paperclip](https://www.anchorterminal.com/compare/deepseek-harness-vs-paperclip.md)\n- [DeepSeek Harness (dsh) vs Parallax](https://www.anchorterminal.com/compare/deepseek-harness-vs-parallax-agents.md)\n- [GitHub Copilot CLI vs Harness](https://www.anchorterminal.com/compare/github-copilot-cli-vs-harness-autonomous.md)\n- [GitHub Copilot CLI vs Paperclip](https://www.anchorterminal.com/compare/github-copilot-cli-vs-paperclip.md)\n- [GitHub Copilot CLI vs 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