Add langfuse plugin

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.claude-plugin/marketplace.json

@@ -19,7 +19,7 @@
         "url": "https://github.com/42Crunch-AI/claude-plugins.git",
         "path": "plugins/api-security-testing",
         "ref": "v1.5.5",
-        "sha": "db2fb7e53e3d93a863930b6f6b7895be5ee01f21"
+        "sha": "b7e131e30ff033be2176faf796c94c151a68c63a"
       },
       "homepage": "https://42crunch.com"
     },
@@ -35,7 +35,7 @@
         "url": "https://github.com/adobe/skills.git",
         "path": "plugins/creative-cloud/adobe-for-creativity",
         "ref": "main",
-        "sha": "e23271f65aa7572f567d085d6baec5c2408e2ad5"
+        "sha": "253f56901e058800ccb97ffd5bf1e3329d5f2e00"
       },
       "homepage": "https://github.com/adobe/skills/tree/main/plugins/creative-cloud/adobe-for-creativity"
     },
@@ -67,7 +67,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/endorlabs/ai-plugins.git",
-        "sha": "975f0ce422b1f2677681ffd085aef34ea1826b70"
+        "sha": "a6737fcf72336399e212e45cd25a250c2df3b7b4"
       },
       "homepage": "https://www.endorlabs.com"
     },
@@ -93,7 +93,7 @@
         "url": "https://github.com/Airtable/skills.git",
         "path": "plugins/airtable",
         "ref": "main",
-        "sha": "21d2fe52774d861e2f2f997eeac2bf965e8590b8"
+        "sha": "295ab93b7d765912ee1a0dc7f1abb0ecaf73f138"
       },
       "homepage": "https://www.airtable.com"
     },
@@ -109,7 +109,7 @@
         "url": "https://github.com/airwallex/airwallex-marketplace.git",
         "path": "plugins/airwallex",
         "ref": "master",
-        "sha": "a903ab7693a5f6d46f2fab6f895a2f96a879ee0f"
+        "sha": "a49ef1ec801fd776adc4db9f2bb4a78463981bc9"
       },
       "homepage": "https://www.airwallex.com/docs"
     },
@@ -150,7 +150,7 @@
         "url": "https://github.com/awslabs/agent-plugins.git",
         "path": "plugins/amazon-location-service",
         "ref": "main",
-        "sha": "fc54dfa24a1f05095b9fcbb4baa4750996bb171d"
+        "sha": "d8243e5f8f3933d656b3bdfe09cd658a5d9b9fac"
       },
       "homepage": "https://github.com/awslabs/agent-plugins"
     },
@@ -291,7 +291,7 @@
         "url": "https://github.com/aws/agent-toolkit-for-aws.git",
         "path": "plugins/aws-agents",
         "ref": "main",
-        "sha": "55b9acfefdcf0866b6bc6cc56c16e6e18e65bd2b"
+        "sha": "c0991f463b54ac94af32a730d6d13293dcff98cf"
       },
       "homepage": "https://github.com/aws/agent-toolkit-for-aws"
     },
@@ -304,7 +304,7 @@
         "url": "https://github.com/awslabs/agent-plugins.git",
         "path": "plugins/aws-amplify",
         "ref": "main",
-        "sha": "fc54dfa24a1f05095b9fcbb4baa4750996bb171d"
+        "sha": "d8243e5f8f3933d656b3bdfe09cd658a5d9b9fac"
       },
       "homepage": "https://github.com/awslabs/agent-plugins"
     },
@@ -320,7 +320,7 @@
         "url": "https://github.com/aws/agent-toolkit-for-aws.git",
         "path": "plugins/aws-core",
         "ref": "main",
-        "sha": "55b9acfefdcf0866b6bc6cc56c16e6e18e65bd2b"
+        "sha": "c0991f463b54ac94af32a730d6d13293dcff98cf"
       },
       "homepage": "https://github.com/aws/agent-toolkit-for-aws"
     },
@@ -336,7 +336,7 @@
         "url": "https://github.com/aws/agent-toolkit-for-aws.git",
         "path": "plugins/aws-data-analytics",
         "ref": "main",
-        "sha": "55b9acfefdcf0866b6bc6cc56c16e6e18e65bd2b"
+        "sha": "c0991f463b54ac94af32a730d6d13293dcff98cf"
       },
       "homepage": "https://github.com/aws/agent-toolkit-for-aws"
     },
@@ -365,7 +365,7 @@
         "url": "https://github.com/awslabs/agent-plugins.git",
         "path": "plugins/aws-serverless",
         "ref": "main",
-        "sha": "fc54dfa24a1f05095b9fcbb4baa4750996bb171d"
+        "sha": "d8243e5f8f3933d656b3bdfe09cd658a5d9b9fac"
       },
       "homepage": "https://github.com/awslabs/agent-plugins"
     },
@@ -381,7 +381,7 @@
         "url": "https://github.com/awslabs/startups.git",
         "path": "advisor/plugins/aws-startup-advisor",
         "ref": "main",
-        "sha": "1dd909352dc228f978c2685724cb38e64efe6be4"
+        "sha": "b3e5ee487ed27d8c776d9b854d7e109f1514c75b"
       },
       "homepage": "https://github.com/awslabs/startups"
     },
@@ -392,7 +392,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/microsoft/azure-skills.git",
-        "sha": "02a614f6ee1f052826f834d65c61e430ad152c8e"
+        "sha": "966330ee4fc61978b6e324993687e917125a1f36"
       },
       "homepage": "https://github.com/microsoft/azure-skills"
     },
@@ -502,7 +502,7 @@
         "url": "https://github.com/carta/plugins.git",
         "path": "plugins/carta-cap-table",
         "ref": "main",
-        "sha": "9eb312908f4a2e2d15e4e935320981433a549f77"
+        "sha": "c39482a45c1e4c02922fe5cef3d61fb010a0b2d9"
       },
       "homepage": "https://carta.com"
     },
@@ -518,7 +518,7 @@
         "url": "https://github.com/carta/plugins.git",
         "path": "plugins/carta-crm",
         "ref": "main",
-        "sha": "9eb312908f4a2e2d15e4e935320981433a549f77"
+        "sha": "c39482a45c1e4c02922fe5cef3d61fb010a0b2d9"
       },
       "homepage": "https://carta.com"
     },
@@ -534,7 +534,7 @@
         "url": "https://github.com/carta/plugins.git",
         "path": "plugins/carta-investors",
         "ref": "main",
-        "sha": "9eb312908f4a2e2d15e4e935320981433a549f77"
+        "sha": "c39482a45c1e4c02922fe5cef3d61fb010a0b2d9"
       },
       "homepage": "https://carta.com"
     },
@@ -561,7 +561,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/ChromeDevTools/chrome-devtools-mcp.git",
-        "sha": "702d3734f276a18efd67561ae00b88ce954cc515"
+        "sha": "6bd8c91678035b5aa18ee40f72e1f630aa528837"
       },
       "homepage": "https://github.com/ChromeDevTools/chrome-devtools-mcp"
     },
@@ -872,7 +872,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/CrowdStrike/foundry-skills.git",
-        "sha": "c542c932956fd19177a62b94577f288c832d4680"
+        "sha": "0a651a1472e4c03603780517374c654236bcce8b"
       },
       "homepage": "https://github.com/CrowdStrike/foundry-skills"
     },
@@ -943,7 +943,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/gemini-cli-extensions/data-agent-kit-starter-pack.git",
-        "sha": "fb9086456d5fbc780edf86f0ac413345ba628173"
+        "sha": "b47cae53405e90dd97d1ecde890a8d4707d1f115"
       },
       "homepage": "https://github.com/gemini-cli-extensions/data-agent-kit-starter-pack"
     },
@@ -966,7 +966,7 @@
         "url": "https://github.com/awslabs/agent-plugins.git",
         "path": "plugins/databases-on-aws",
         "ref": "main",
-        "sha": "fc54dfa24a1f05095b9fcbb4baa4750996bb171d"
+        "sha": "d8243e5f8f3933d656b3bdfe09cd658a5d9b9fac"
       },
       "homepage": "https://github.com/awslabs/agent-plugins"
     },
@@ -1008,7 +1008,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/gemini-cli-extensions/dataproc.git",
-        "sha": "20eec06eee7683311689f4a1437cbb14ac8cd33e"
+        "sha": "80d126d27d84ded752c84668472dd6f75896fc59"
       },
       "homepage": "https://github.com/gemini-cli-extensions/dataproc"
     },
@@ -1035,7 +1035,7 @@
         "url": "https://github.com/microsoft/Dataverse-skills.git",
         "path": ".github/plugins/dataverse",
         "ref": "main",
-        "sha": "2d50cf65f80efc17ac50632222d61fb374115a70"
+        "sha": "2c37394346be1afc1db12cc5b89f5dee3617c45c"
       },
       "homepage": "https://github.com/microsoft/Dataverse-skills"
     },
@@ -1048,7 +1048,7 @@
         "url": "https://github.com/awslabs/agent-plugins.git",
         "path": "plugins/deploy-on-aws",
         "ref": "main",
-        "sha": "fc54dfa24a1f05095b9fcbb4baa4750996bb171d"
+        "sha": "d8243e5f8f3933d656b3bdfe09cd658a5d9b9fac"
       },
       "homepage": "https://github.com/awslabs/agent-plugins"
     },
@@ -1126,7 +1126,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/exa-labs/exa-mcp-server.git",
-        "sha": "f08388256c5806f457fae777b5528eb02a48e703"
+        "sha": "9ea4ba3e67f87c462c3e06b192470e837ed9009e"
       },
       "homepage": "https://exa.ai/docs/reference/exa-mcp"
     },
@@ -1166,7 +1166,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/fastly/fastly-agent-toolkit.git",
-        "sha": "6bd17d685a1b361a2b368bf0236f39efb1be62d6"
+        "sha": "73af5b94a98448ffeed6e2993495dc83c9a597be"
       },
       "homepage": "https://github.com/fastly/fastly-agent-toolkit/blob/main/README.md"
     },
@@ -1198,7 +1198,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/figma/mcp-server-guide.git",
-        "sha": "a742f0a700a7772ff5ed85f7c9fc1dad5afa9fcc"
+        "sha": "54ad156019d7362a56d8024b9adbe99952aa29b6"
       },
       "homepage": "https://github.com/figma/mcp-server-guide"
     },
@@ -1216,7 +1216,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/firecrawl/firecrawl-claude-plugin.git",
-        "sha": "6768fb78185aab9e5b5a04777f84703863fb025b"
+        "sha": "b33447585ac521b091eae672bd4cad4ec1d093f6"
       },
       "homepage": "https://github.com/firecrawl/firecrawl-claude-plugin.git"
     },
@@ -1244,7 +1244,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/atlassian/forge-skills.git",
-        "sha": "02103cca4addb4c42d64d4e18a9d1a7f186edf6c"
+        "sha": "c7df956176eb1c2a10ffabc4eaacc5d843d8bede"
       },
       "homepage": "https://developer.atlassian.com/platform/forge/"
     },
@@ -1347,7 +1347,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/hunter-io/claude-plugin.git",
-        "sha": "494b0bd6ac252c7c8d78402cb51c7f635b1469ad"
+        "sha": "06bcb94a4e6498d8557a4543f8d5c4ea429b0c0a"
       },
       "homepage": "https://hunter.io"
     },
@@ -1361,7 +1361,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/heygen-com/hyperframes.git",
-        "sha": "25420bf4cfc37b179b4efeace9db25a7178b61bf"
+        "sha": "acd8e11789a7bf92f0ed4fac24ff030cd758da37"
       },
       "homepage": "https://hyperframes.heygen.com"
     },
@@ -1415,7 +1415,7 @@
         "source": "github",
         "repo": "jfrog/claude-plugin",
         "commit": "259c8e718266c16e99b4f30ae9b1ed0f9f00d98d",
-        "sha": "117febaa29cbe9449cfb42d1c39b83b858d801a1"
+        "sha": "6788fe15d4a63d47f038c05e58ae533aeb2dadb6"
       },
       "homepage": "https://jfrog.com"
     },
@@ -1458,6 +1458,20 @@
         }
       }
     },
+    {
+      "name": "langfuse",
+      "description": "Skills for working with Langfuse, the open-source LLM engineering platform for tracing, prompt management, and evaluation.",
+      "author": {
+        "name": "Langfuse"
+      },
+      "category": "monitoring",
+      "source": {
+        "source": "url",
+        "url": "https://github.com/langfuse/skills.git",
+        "sha": "84657a123c12e87d7fa32cbc20197144674e110a"
+      },
+      "homepage": "https://langfuse.com"
+    },
     {
       "name": "laravel-boost",
       "description": "Laravel development toolkit MCP server. Provides intelligent assistance for Laravel applications including Artisan commands, Eloquent queries, routing, migrations, and framework-specific code generation.",
@@ -1540,7 +1554,7 @@
         "url": "https://github.com/pydantic/skills.git",
         "path": "plugins/logfire",
         "ref": "main",
-        "sha": "e412b6d8d4b6199ac577c5ee8653dcff840b3e92"
+        "sha": "ddc7d00569458f3838c6cf489f5be6c59afaf8c1"
       },
       "homepage": "https://github.com/pydantic/skills/tree/main/plugins/logfire"
     },
@@ -1708,7 +1722,7 @@
         "url": "https://github.com/awslabs/startups.git",
         "path": "migrate/plugins/migration-to-aws",
         "ref": "main",
-        "sha": "1dd909352dc228f978c2685724cb38e64efe6be4"
+        "sha": "3c5d6a7deb24c3318be8b78ef75545539ab1bbcd"
       },
       "homepage": "https://github.com/awslabs/startups"
     },
@@ -1770,7 +1784,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/netlify/context-and-tools.git",
-        "sha": "5f777ba63df12f4eb189be4c58bd35d0c8316505"
+        "sha": "22025ef6c9dc9ef88d0c9c047980c10cacb178ee"
       },
       "homepage": "https://github.com/netlify/context-and-tools"
     },
@@ -1839,7 +1853,7 @@
         "url": "https://github.com/NVIDIA/skills.git",
         "path": "plugins/nvidia-skills",
         "ref": "main",
-        "sha": "0482ebce81bd8f2d39990317bb3cfb07637e39fd"
+        "sha": "fd1e6fd1971eb7113a4dd206a028246fa4b3d8b4"
       },
       "homepage": "https://github.com/NVIDIA/skills"
     },
@@ -1885,7 +1899,7 @@
         "url": "https://github.com/growthxai/output.git",
         "path": "coding_assistants/claude/plugins/outputai",
         "ref": "main",
-        "sha": "2cc4685ebadfba9586f01890df48e1b25bd1049a"
+        "sha": "65cd087132dce880362c52384b8237eb9202ceea"
       },
       "homepage": "https://output.ai"
     },
@@ -2050,7 +2064,7 @@
         "url": "https://github.com/pydantic/skills.git",
         "path": "plugins/ai",
         "ref": "main",
-        "sha": "e412b6d8d4b6199ac577c5ee8653dcff840b3e92"
+        "sha": "ddc7d00569458f3838c6cf489f5be6c59afaf8c1"
       },
       "homepage": "https://github.com/pydantic/skills/tree/main/plugins/ai"
     },
@@ -2127,7 +2141,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/quarkusio/quarkus-agent-mcp.git",
-        "sha": "e711107a1171507212dd0edd17b5a922212c3a97"
+        "sha": "91c7986e41234827db2632ed07770301468c9dbc"
       },
       "homepage": "https://quarkus.io"
     },
@@ -2300,7 +2314,7 @@
         "url": "https://github.com/awslabs/agent-plugins.git",
         "path": "plugins/sagemaker-ai",
         "ref": "main",
-        "sha": "fc54dfa24a1f05095b9fcbb4baa4750996bb171d"
+        "sha": "d8243e5f8f3933d656b3bdfe09cd658a5d9b9fac"
       },
       "homepage": "https://github.com/awslabs/agent-plugins"
     },
@@ -2348,7 +2362,7 @@
         "url": "https://github.com/SAP/open-ux-tools.git",
         "path": "packages/fiori-mcp-server",
         "ref": "main",
-        "sha": "fbfe8c32fb9fc64583aa72ac03ab64f553c407ee"
+        "sha": "604f28952b720579ca9369978ba73493092fdf13"
       },
       "homepage": "https://github.com/SAP/open-ux-tools/tree/main/packages/fiori-mcp-server"
     },
@@ -2415,7 +2429,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/getsentry/sentry-for-claude.git",
-        "sha": "030b01fb76b21f5d7ef6af5a3c3dfa658a9b5024"
+        "sha": "87de81a1300acc03fffa2438877fa2dcf078e703"
       },
       "homepage": "https://github.com/getsentry/sentry-for-claude/tree/main"
     },
@@ -2431,7 +2445,7 @@
         "url": "https://github.com/getsentry/cli.git",
         "path": "plugins/sentry-cli",
         "ref": "main",
-        "sha": "9e9fe0fb6444f18ed109058b2749cced3c21f87e"
+        "sha": "18111b95ac8819d58e4f0334d4b8ee8f72513d1e"
       },
       "homepage": "https://sentry.io"
     },
@@ -2534,7 +2548,7 @@
         "url": "https://github.com/Snowflake-Labs/snowflake-ai-kit.git",
         "path": "plugins/cortex-code",
         "ref": "main",
-        "sha": "6a22eb1ff3b451c35e40468a118bbee54610c9bd"
+        "sha": "7d2c7e7e0788e255019a64a8690aa5f85d073a2c"
       },
       "homepage": "https://docs.snowflake.com/en/user-guide/cortex-code"
     },
@@ -2620,7 +2634,7 @@
         "source": "url",
         "url": "https://github.com/sumup/sumup-skills.git",
         "path": "providers/claude/plugin",
-        "sha": "715464b459def2d16e930e9ec8008f60e18a8b4d"
+        "sha": "5b9b2d72c63fefd9038db0a9c571d3d64ff6353c"
       },
       "homepage": "https://www.sumup.com/"
     },
@@ -2707,7 +2721,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/togethercomputer/skills.git",
-        "sha": "fb94cc1402900eb608c31e7102fc23566f8b0363"
+        "sha": "8aa08ca126a50d5e76f6d378f47386cee4267984"
       },
       "homepage": "https://www.together.ai"
     },
@@ -2881,7 +2895,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/wix/skills.git",
-        "sha": "188ed338f39d70e5aef7f9a2582bbf338f223b78"
+        "sha": "9666bc8d4856d9028e815610c23ab4f48d8ddd3b"
       },
       "homepage": "https://dev.wix.com/docs/wix-cli/guides/development/about-wix-skills"
     },
@@ -2907,7 +2921,7 @@
         "url": "https://github.com/workos/skills.git",
         "path": "plugins/workos",
         "ref": "main",
-        "sha": "e8900cc504fd759407d1a963d13f59383fa39ebc"
+        "sha": "2c3acef61ea29296cb6e73e0c59fb5e98f0b1847"
       },
       "homepage": "https://workos.com"
     },

plugins/code-modernization/README.md

@@ -29,6 +29,10 @@ The commands degrade gracefully, but each of these makes the output meaningfully
 - **The whole system in the tree**: deployment descriptors (JCL, CICS definitions, route configs), copybooks/includes, and DDL/schemas. Entry-point detection and data lineage in `/modernize-map` are guesswork without them.
 - **Production telemetry** (optional): an observability MCP server or batch job logs enable the runtime overlay in `/modernize-assess` and timing annotations on critical paths.
 
+## Secret handling
+
+Legacy systems routinely contain live credentials, and assessment artifacts get committed and shared. **Every agent in this plugin masks credential values** — findings, rule-card parameters, architecture notes, and test fixtures cite `file:line` with a masked preview (`AKIA****`), never the value. When credentials are found, a per-credential inventory (type, location, blast radius, rotation recommendation) is written to `analysis/<system>/SECRETS.local.md`, which the commands gitignore before writing; on non-git projects the quarantine file goes to `~/.modernize/<system>/` instead. `/modernize-harden` splits its remediation diff so credential-removal hunks (which necessarily contain the raw value) land in a gitignored `security_remediation.local.patch`, never the shareable patch. Pass `--show-secrets` to include raw values in the quarantine file (and only there). If you ran an earlier version of this plugin on a real system, check whether `analysis/` artifacts containing credentials were committed or shared, and rotate anything that was.
+
 ## Commands
 
 The commands are designed to be run in order, but each produces a standalone artifact so you can stop, review, and resume.

plugins/code-modernization/agents/architecture-critic.md

@@ -29,6 +29,12 @@ For **transformed code**:
 - Does the test suite actually pin behavior, or just exercise code paths?
 - What would the on-call engineer need at 3am that isn't here?
 
+## Secret handling (mandatory)
+
+When a finding quotes code containing a credential, key, token, or
+connection string, mask the value (`'Pr0d****'`) and cite `file:line` —
+findings get appended verbatim to committed notes files.
+
 ## Output
 
 Findings ranked **Blocker / High / Medium / Nit**. Each with: what, where,

plugins/code-modernization/agents/business-rules-extractor.md

@@ -40,6 +40,15 @@ of the technology, skip it.
    from structure/names), **Low** (ambiguous; needs SME).
 6. If confidence < High, write the exact question an SME must answer.
 
+## Secret handling (mandatory)
+
+Rule parameters sometimes *are* credentials — hardcoded passwords in auth
+checks, API keys in partner-service calls, connection strings in batch
+routines. Record the **rule**, never the **value**: write the parameter as
+`<credential — masked, see file:line>` with at most a 2–4 character
+preview. Rule cards flow into briefs and steering decks; a raw credential
+in a parameter list is a leak.
+
 ## Output format
 
 One "Rule Card" per rule (see the format in the `/modernize-extract-rules`

plugins/code-modernization/agents/legacy-analyst.md

@@ -32,6 +32,15 @@ and explain it in terms a modern engineer can act on.
 - **Note what's missing.** Unhandled error paths, TODO comments, commented-out
   blocks, magic numbers — these are signals about history and risk.
 
+## Secret handling (mandatory)
+
+Legacy code is full of live credentials, and your findings get copied into
+shareable reports. When the evidence for a finding — hardcoded config,
+dead code, debt, an interface payload — includes a credential, API key,
+token, connection string, or private key, **never reproduce the value**.
+Cite `file:line` with a masked preview (`VALUE 'Pr0d****'`,
+`password=****`). The finding is the practice, not the value.
+
 ## Output format
 
 Default to structured markdown: tables for inventories, Mermaid for graphs,

plugins/code-modernization/agents/security-auditor.md

@@ -39,7 +39,30 @@ terminal/screen items don't apply to a SPA. Work through what's relevant:
 
 Use available SAST where it helps (npm audit, pip-audit, grep for known-bad
 patterns) but **read the code** — tools miss logic flaws. Show tool output
-verbatim, then add your manual findings.
+verbatim — except secret values, which you redact (see below) — then add
+your manual findings.
+
+## Secret handling (mandatory)
+
+Legacy codebases routinely contain live production credentials, and your
+findings get pasted into decks, tickets, and committed markdown. Copying a
+secret into a report multiplies the exposure you were hired to find.
+
+When you discover a hardcoded credential, API key, token, connection
+string, or private key:
+
+- **Never write the secret's value into any output** — no finding table,
+  no report, no quoted code excerpt, no echoed tool output. Mask it to the
+  first 2–4 identifying characters plus `****` (`AKIA****`,
+  `postgres://app_user:****@db-prod…`). If a scanner prints a secret,
+  redact it before including the excerpt.
+- Cite `file:line`. The source file is the canonical location — anyone who
+  legitimately needs the value can open it there.
+- State what the credential appears to grant access to (database, queue,
+  cloud account, third-party API) and whether it looks like a production
+  or test credential.
+- Recommend rotation for anything that looks live — exposure in source
+  means it is already compromised, independent of any modernization plan.
 
 ## Reporting standard
 

plugins/code-modernization/agents/test-engineer.md

@@ -28,6 +28,15 @@ someone thinks it should do) so that a rewrite can be proven equivalent.
   `@Disabled("pending RULE-NNN")` / `@pytest.mark.skip` / `it.todo()` — never
   deleted.
 
+## Secret handling (mandatory)
+
+Never copy credential-like literals — passwords, API keys, tokens,
+connection strings — from legacy code into test fixtures. Tests live in
+the deliverable codebase and get committed. Substitute clearly-fake values
+of the same shape and length and note the substitution in a comment.
+Anything a test genuinely needs live (e.g. a real database connection for
+a dual-run harness) is read from an environment variable, never inlined.
+
 ## Output
 
 Idiomatic tests for the requested target stack (JUnit 5 / pytest / Vitest /

plugins/code-modernization/commands/modernize-assess.md

@@ -1,11 +1,13 @@
 ---
 description: Full discovery & portfolio analysis of a legacy system — inventory, complexity, debt, effort estimation
-argument-hint: <system-dir> | --portfolio <parent-dir>
+argument-hint: <system-dir> [--show-secrets] | --portfolio <parent-dir>
 ---
 
 **Mode select.** If `$ARGUMENTS` starts with `--portfolio`, run **Portfolio
 mode** against the directory that follows. Otherwise run **Single-system
-mode** against `legacy/$1`.
+mode** against the system dir. Parse flags positionally-independently:
+`--show-secrets` may appear before or after the system dir — the system
+dir is the first non-flag token.
 
 ---
 
@@ -108,12 +110,16 @@ Spawn three subagents **in parallel**:
 2. **legacy-analyst** — "Identify technical debt in legacy/$1: dead code,
    deprecated APIs, copy-paste duplication, god objects/programs, missing
    error handling, hardcoded config. Return the top 10 findings ranked by
-   remediation value, each with file:line evidence."
+   remediation value, each with file:line evidence. If evidence contains a
+   credential value, mask it per your secret-handling rules — never quote
+   it."
 
 3. **security-auditor** — "Scan legacy/$1 for security vulnerabilities:
    injection, auth weaknesses, hardcoded secrets, vulnerable dependencies,
    missing input validation. Return findings in CWE-tagged table form with
-   file:line evidence and severity."
+   file:line evidence and severity. Mask every discovered credential value
+   per your secret-handling rules — file:line plus a 2–4 character masked
+   preview, never the value itself."
 
 Wait for all three. Synthesize their findings.
 
@@ -141,6 +147,31 @@ need explained.
 
 ## Step 6 — Write the assessment
 
+**Secrets quarantine first.** The assessment gets shared and committed —
+discovered credential values must never appear in it. If the
+security-auditor found any hardcoded credentials:
+
+1. Ensure `analysis/.gitignore` exists and contains the lines
+   `SECRETS.local.md` and `*.local.patch` (create or append as needed —
+   the patch pattern is used by `/modernize-harden`; writing both now
+   means the ignore set is complete from first contact). If the project is a
+   git repo, verify with `git check-ignore -q analysis/$1/SECRETS.local.md`
+   — do not write any findings until the check passes. If there is **no
+   git repo** (check for `.svn`/`.hg`/`CVS` too — a `.gitignore` protects
+   nothing under another VCS): refuse `--show-secrets` and write
+   `SECRETS.local.md` to `~/.modernize/$1/` instead of the project tree,
+   telling the user where it went and why.
+2. Write `SECRETS.local.md`: one row per credential — masked preview,
+   `file:line`, credential type, what it grants access to,
+   production/test guess, rotation recommendation. Only if the user passed
+   `--show-secrets`, add the raw value column here — this file only, never
+   ASSESSMENT.md.
+3. Masking applies to **every section of ASSESSMENT.md**, whichever agent
+   produced the finding — the Technical Debt section quotes hardcoded
+   config; those quotes follow the same masking rule as Security Findings.
+   The Security Findings section adds a one-line pointer:
+   "Credential inventory in SECRETS.local.md (gitignored; not for sharing)."
+
 Create `analysis/$1/ASSESSMENT.md` with these sections:
 - **Executive Summary** (3-4 sentences: what it is, how big, how risky, headline recommendation)
 - **System Inventory** (the scc table + tech fingerprint)

plugins/code-modernization/commands/modernize-extract-rules.md

@@ -46,7 +46,7 @@ Merge the three result sets. Deduplicate. For each distinct rule, write a
   When  <trigger>
   Then  <outcome>
   [And  <additional outcome>]
-**Parameters:** <constants, rates, thresholds with their current values>
+**Parameters:** <constants, rates, thresholds with their current values — credentials masked: `<credential — masked, see file:line>`>
 **Edge cases handled:** <list>
 **Suspected defect:** <optional — legacy behavior that looks wrong; decide preserve-vs-fix during transform>
 **Confidence:** High | Medium | Low — <why; if < High, state the exact SME question>

plugins/code-modernization/commands/modernize-harden.md

@@ -1,14 +1,42 @@
 ---
 description: Security vulnerability scan with a reviewable remediation patch — OWASP, CWE, CVE, secrets, injection
-argument-hint: <system-dir>
+argument-hint: <system-dir> [--show-secrets]
 ---
 
-Run a **security hardening pass** on `legacy/$1`: find vulnerabilities, rank
-them, and produce a reviewable patch for the critical ones.
+Run a **security hardening pass** on the legacy system: find
+vulnerabilities, rank them, and produce a reviewable patch for the
+critical ones. Parse arguments flag-independently: the system dir
+(referred to as `$1` below) is the first non-flag token in `$ARGUMENTS`;
+`--show-secrets` may appear anywhere.
 
 This command never edits `legacy/` — it writes findings and a proposed patch
 to `analysis/$1/`. The user reviews and applies (or not).
 
+## Step 0 — Secrets quarantine setup
+
+Findings files get shared, committed, and pasted into decks — discovered
+credential values must never land in them. Before any scanning:
+
+1. Ensure `analysis/.gitignore` exists and contains the lines
+   `SECRETS.local.md` and `*.local.patch`. Create the file or append the
+   missing lines.
+2. If the project is a git repo, verify with
+   `git check-ignore -q analysis/$1/SECRETS.local.md` — if that exits
+   non-zero, fix the ignore rule before proceeding. Do not write any
+   findings until this check passes.
+3. **If there is no git repo** (check for `.svn`/`.hg`/`CVS` too — a
+   `.gitignore` protects nothing under another VCS): refuse
+   `--show-secrets`, and write `SECRETS.local.md` and any `.local.patch`
+   file to `~/.modernize/$1/` instead of the project tree, telling the
+   user where they went and why.
+
+All secret values in every shareable artifact this command produces are
+**masked** (`AKIA****`, `password=****`) and cited by `file:line`. Raw
+values may appear in exactly two places, both gitignored: the
+`*.local.patch` remediation hunks (unavoidably — see Remediate) and, only
+with `--show-secrets`, `SECRETS.local.md`. Never in SECURITY_FINDINGS.md
+or patch commentary.
+
 ## Scan
 
 Spawn the **security-auditor** subagent:
@@ -20,7 +48,9 @@ hardcoded secrets, vulnerable dependency versions, missing input validation,
 path traversal. For each finding return: CWE ID, severity
 (Critical/High/Med/Low), file:line, one-sentence exploit scenario, and
 recommended fix. Run any available SAST tooling (npm audit, pip-audit,
-OWASP dependency-check) and include its raw output."
+OWASP dependency-check) and include its raw output. Mask every discovered
+credential value per your secret-handling rules — file:line plus a 2–4
+character masked preview, never the value itself."
 
 ## Triage
 
@@ -29,26 +59,50 @@ Write `analysis/$1/SECURITY_FINDINGS.md`:
 - Findings table sorted by severity
 - Dependency CVE table (package, installed version, CVE, fixed version)
 
+If any hardcoded credentials were found, also write
+`analysis/$1/SECRETS.local.md` (the gitignored quarantine file from Step 0):
+one row per credential — masked preview, `file:line`, credential type, what
+it appears to grant access to, production/test guess, and a rotation
+recommendation. With `--show-secrets`, append the raw value column here —
+this file only. SECURITY_FINDINGS.md gets a one-line pointer:
+"N hardcoded credentials found — inventory in SECRETS.local.md (gitignored;
+not for sharing)."
+
 ## Remediate
 
 For each **Critical** and **High** finding, draft a minimal, targeted fix.
-Do **not** edit `legacy/` — write all fixes as a single unified diff to
-`analysis/$1/security_remediation.patch`, with a comment line above each
-hunk citing the finding ID it addresses (`# SEC-001: parameterize the query`).
+Do **not** edit `legacy/` — write fixes as unified diffs with **paths
+relative to the project root** (`legacy/$1/...`), applied from the project
+root, with a comment line above each hunk citing the finding ID it
+addresses (`# SEC-001: parameterize the query`).
+
+**Credential findings split into two files.** A diff that removes a
+hardcoded secret necessarily contains the raw value on its `-` and
+context lines — that cannot go in the shareable patch:
+
+- `analysis/$1/security_remediation.patch` (shareable) — every
+  non-credential hunk, plus for each credential finding a comment-only
+  placeholder: `# SEC-NNN: credential remediation — hunk in
+  security_remediation.local.patch (gitignored; not for sharing)`.
+- `analysis/$1/security_remediation.local.patch` (gitignored in Step 0) —
+  the real, applyable hunks for credential findings only.
 
 Add a **Remediation Log** section to SECURITY_FINDINGS.md mapping each
-finding ID → one-line summary of the proposed fix and the patch hunk that
-implements it.
+finding ID → one-line summary of the proposed fix and which patch file
+carries the hunk.
 
 ## Verify
 
-Spawn the **security-auditor** again to **review the patch** against the
-original code:
+Spawn the **security-auditor** again to **review both patches** against
+the original code:
 
-"Review analysis/$1/security_remediation.patch against legacy/$1. For each
+"Review analysis/$1/security_remediation.patch and
+analysis/$1/security_remediation.local.patch against legacy/$1. For each
 hunk: does it fully remediate the cited finding? Does it introduce new
-vulnerabilities or change behavior beyond the fix? Return one verdict per
-hunk: RESOLVES / PARTIAL / INTRODUCES-RISK, with a one-line reason."
+vulnerabilities or change behavior beyond the fix? Confirm no raw
+credential values appear anywhere in the shareable patch. Return one
+verdict per hunk: RESOLVES / PARTIAL / INTRODUCES-RISK, with a one-line
+reason."
 
 Add a **Patch Review** section to SECURITY_FINDINGS.md with the verdicts.
 If any hunk is PARTIAL or INTRODUCES-RISK, revise the patch and re-review.
@@ -57,8 +111,12 @@ If any hunk is PARTIAL or INTRODUCES-RISK, revise the patch and re-review.
 
 Tell the user the artifacts are ready:
 - `analysis/$1/SECURITY_FINDINGS.md` — findings, remediation log, patch review
-- `analysis/$1/security_remediation.patch` — review, then apply if appropriate
-  with `git -C legacy/$1 apply ../../analysis/$1/security_remediation.patch`
+- `analysis/$1/security_remediation.patch` — review, then apply **from the
+  project root**: `git apply analysis/$1/security_remediation.patch`
+  (if `legacy/$1` is a symlink, use `git apply --unsafe-paths` or apply
+  with `patch -p0` from the project root)
+- `analysis/$1/security_remediation.local.patch` — the credential fixes;
+  apply the same way, and rotate the affected credentials regardless
 - Re-run `/modernize-harden $1` after applying to confirm resolution
 
 Suggest: `glow -p analysis/$1/SECURITY_FINDINGS.md`