--- canonical: "https://firewall.lpm.dev/npm/@soyjuanpiece/jpcode/v/1.0.0" markdown: "https://firewall.lpm.dev/npm/@soyjuanpiece/jpcode/v/1.0.0.md" package: "@soyjuanpiece/jpcode" report_status: "published" title: "@soyjuanpiece/jpcode@1.0.0 npm security report" verdict: "policy_finding" version: "1.0.0" --- # @soyjuanpiece/jpcode@1.0.0 npm security report > **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document. ## Verdict summary **Soft block: AI-agent control surface** — Warn by default; block when configured. It persistently causes OpenCode to load this package's plugin without an explicit user command. - **Verdict:** AI-agent control-surface policy finding - **Product-default install policy:** Warn by default; block when configured - **Firewall policy:** Warn by default - **Public report status:** Published - **Threat category:** Soft block: AI-agent control surface - **Selected version:** 1.0.0 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) This finding concerns changes to an AI agent's instructions or configuration without explicit user action. It does not by itself establish malware intent. The CLI warns by default and blocks when configured for this policy. AI assessment: malicious; recommendation: publish block. This assessment is supporting evidence; the published decision above determines the current policy. LPM flags this version as an AI-agent control-surface risk. Installation automatically changes the user's OpenCode agent configuration. No network activity was identified in the inspected installer. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Malicious - **Recorded analysis confidence:** 96.0% - **Started:** 2026-09-27T01:24:32.398Z - **Finished:** 2026-09-27T01:27:19.058Z - **Download time:** 1031 ms - **Static scan time:** 23 ms - **AI review time:** 165606 ms - **Total time:** 166660 ms The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs. ## Security analysis ### Published attack-surface review - **Summary:** Installation automatically changes the user's OpenCode agent configuration. No network activity was identified in the inspected installer. - **Trigger:** npm postinstall execution. - **Impact:** It persistently causes OpenCode to load this package's plugin without an explicit user command. - **Evidence paths:** package.json, bin/install-plugin.mjs - **Review source:** ai\_review - **Reviewed:** 2026-09-27T01:27:19.058Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** The installer adds a file-based plugin entry and writes the OpenCode TUI configuration. - **Attack narrative:** The npm postinstall hook invokes the installer. It locates the user's OpenCode TUI configuration, adds the package plugin path, and saves the configuration. This is an automatic mutation of a separate AI-agent control surface during installation. - **Rationale:** The package performs an unconsented postinstall write to a user's OpenCode configuration, causing a package-supplied plugin to load. This meets the install-time AI-agent control-surface mutation blocking policy. - **Files touched:** opencode/tui.json ### Review decision - **Verdict:** Malicious - **Confidence:** 96.0% - **Recommended action:** publish\_block - **Intent class:** Malware - **False-positive risk:** Low - **Evidence for policy risk:** The package automatically runs an installer after npm installation., The installer targets the user's OpenCode TUI configuration file., The installer adds its local plugin to that configuration and writes the changed file. ## Affected versions and remediation This report applies to @soyjuanpiece/jpcode@1.0.0. - Avoid installing @soyjuanpiece/jpcode@1.0.0. Remove it from direct dependencies and check your lockfile for transitive copies. - Choose an independently verified alternative or release. This report does not establish that other versions are safe. - If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment. ## Public findings ### 1. High: Install Time Lifecycle Scripts - **Category:** Manifest - **Confidence:** 90.0% - **Path:** package.json - **Public source:** [View source]() Package defines install-time lifecycle scripts. Public source snippet (untrusted): ```json scripts.postinstall = node bin/install-plugin.mjs ``` ### 2. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 3. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 4. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 5. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 96.0% - **Path:** package.json - **Public source:** [View source]() The package automatically runs an installer after npm installation. Public source snippet (untrusted): ```json "scripts": { "postinstall": "node bin/install-plugin.mjs" }, "dependenci ``` ### 6. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 96.0% - **Path:** bin/install-plugin.mjs - **Public source:** [View source]() The installer targets the user's OpenCode TUI configuration file. Public source snippet (untrusted): ```javascript const cfgPath = path.join(base, "opencode", "tui.json") let cfg = {} if (existsSync(cfgPath)) { cfg = JSON.parse(readFileSync(cfgPath, "utf8")) } const pluginDir = path ``` ### 7. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 96.0% - **Path:** bin/install-plugin.mjs - **Public source:** [View source]() The installer adds its local plugin to that configuration and writes the changed file. Public source snippet (untrusted): ```javascript plugins.add(`file:${pluginDir}`) const next = { ...cfg, plugin: [...plugins] } if (!next.theme) next.theme = "claude" mkdirSync(path.dirname(cfgPath), { recursive: true }) ``` ### 8. High: Ai Review Evidence - **Category:** Ai Review - **Confidence:** 96.0% - **Path:** bin/install-plugin.mjs - **Public source:** [View source]() The installer adds its local plugin to that configuration and writes the changed file. Public source snippet (untrusted): ```javascript writeFileSync(cfgPath, JSON.stringify(next, null, 2) + "\n") ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** postinstall - **Dependencies:** 1 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 0 - **Published dependency-graph edges:** 1 ### Published dependency entries - opencode-ai ^1.18.32 (Dependency) ## Package metadata - **Package:** @soyjuanpiece/jpcode - **Ecosystem:** npm - **Version:** 1.0.0 - **License:** MIT - **Version published:** 2026-09-27T00:44:09.130Z - **Package first seen:** 2026-09-27T01:27:19.058Z - **Package last seen:** 2026-09-27T20:06:24.372Z - **Known versions:** 6 - **Latest version:** 2.0.3 - **Appeal under review:** No - **Description:** JpCode — la CLI de opencode con identidad visual propia: banner JPCODE, tema claude, /cost, /memory y layout adaptativo. Motor opencode real, solo rediseñado por fuera. - **Author:** SoyJuanPiece - **Keywords:** opencode, opencode-plugin, jpcode, tui, cli, ai, coding-agent, terminal - **Artifact files:** 8 - **Artifact unpacked size:** 28,536 bytes - **Artifact signatures:** 1 - **Attestations:** No ## References - [HTML security report]() - [Repository]() - [Homepage]() - [Issues]()