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gcapnias/index.js

Last active February 19, 2026 11:41
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An MCP server `tasks-mcp-server` that can keep track of features for implementation by an agent.
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index.js
#!/usr/bin/env node
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steps TEXT NOT NULL,
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WHERE id = ?",1,o);let l=s.query("SELECT * FROM features WHERE id = ?",o)[0],d={id:l.id,priority:l.priority,category:l.category,name:l.name,description:l.description,steps:JSON.parse(l.steps||"[]"),passes:!!l.passes,in_progress:!!l.in_progress,dependencies:l.dependencies?JSON.parse(l.dependencies):null};return JSON.stringify(d)}catch(c){return JSON.stringify({error:`Failed to mark feature in-progress: ${c}`})}finally{s.close()}}function he(o){let s=x();try{let c=s.query("SELECT * FROM features WHERE id = ?",o);if(c.length===0)return JSON.stringify({error:`Feature with ID ${o} not found`});let u=c[0];if(u.passes)return JSON.stringify({error:`Feature with ID ${o} is already passing`});let l=!!u.in_progress;l||s.execute("UPDATE features SET in_progress = ? WHERE id = ?",1,o);let d=s.query("SELECT * FROM features WHERE id = ?",[o])[0],p={id:d.id,priority:d.priority,category:d.category,name:d.name,description:d.description,steps:JSON.parse(d.steps||"[]"),passes:!!d.passes,in_progress:!!d.in_progress,dependencies:d.dependencies?JSON.parse(d.dependencies):null,already_claimed:l};return JSON.stringify(p)}catch(c){return JSON.stringify({error:`Failed to claim feature: ${c}`})}finally{s.close()}}function ye(o){let s=x();try{if(s.query("SELECT * FROM features WHERE id = ?",o).length===0)return JSON.stringify({error:`Feature with ID ${o} not found`});s.execute("UPDATE features SET in_progress = ? WHERE id = ?",0,o);let u=s.query("SELECT * FROM features WHERE id = ?",[o])[0],l={id:u.id,priority:u.priority,category:u.category,name:u.name,description:u.description,steps:JSON.parse(u.steps||"[]"),passes:!!u.passes,in_progress:!!u.in_progress,dependencies:u.dependencies?JSON.parse(u.dependencies):null};return JSON.stringify(l)}catch(c){return JSON.stringify({error:`Failed to clear in-progress status: ${c}`})}finally{s.close()}}function ge(o){let s=x();try{for(let c=0;c<o.length;c++){let u=o[c];if(!u.category||!u.name||!u.description||!u.steps)return JSON.stringify({error:`Feature at index ${c} missing required fields (category, name, description, steps)`});let l=u.depends_on_indices||[];if(l.length>0){if(l.length>20)return JSON.stringify({error:`Feature at index ${c} has ${l.length} dependencies, max is ${20}`});if(new Set(l).size!==l.length)return JSON.stringify({error:`Feature at index ${c} has duplicate dependencies`});for(let d of l){if(!Number.isInteger(d)||d<0)return JSON.stringify({error:`Feature at index ${c} has invalid dependency index: ${d}`});if(d>=c)return JSON.stringify({error:`Feature at index ${c} cannot depend on feature at index ${d} (forward reference not allowed)`})}}}B();try{let u=(s.query("SELECT MAX(priority) as max_priority FROM features")[0]?.max_priority??0)+1,l=[];for(let p=0;p<o.length;p++){let y=o[p];s.execute("INSERT INTO features (priority, category, name, description, steps, passes, in_progress, dependencies) VALUES (?, ?, ?, ?, ?, ?, ?, ?)",[u+p,y.category,y.name,y.description,JSON.stringify(y.steps),0,0,null]);let v=s.query("SELECT last_insert_rowid() as id");l.push(v[0].id)}let d=0;for(let p=0;p<o.length;p++){let y=o[p].depends_on_indices||[];if(y.length>0){let v=y.map(E=>l[E]).sort((E,S)=>E-S);s.execute("UPDATE features SET dependencies = ? 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WHERE id = ?",y,o),JSON.stringify({success:!0,feature_id:o,dependencies:p})}catch(u){return JSON.stringify({error:`Failed to remove dependency: ${u}`})}finally{c.close()}}function Se(o=10){let s=x();try{let u=s.query("SELECT * FROM features").map(y=>({id:y.id,priority:y.priority,category:y.category,name:y.name,description:y.description,steps:JSON.parse(y.steps||"[]"),passes:!!y.passes,in_progress:!!y.in_progress,dependencies:y.dependencies?JSON.parse(y.dependencies):null})),l=new Set(u.filter(y=>y.passes).map(y=>y.id)),d=[];for(let y of u){if(y.passes||y.in_progress)continue;(y.dependencies||[]).every(E=>l.has(E))&&d.push(y)}let p=Y(u);return d.sort((y,v)=>{let E=p.get(y.id)??0,S=p.get(v.id)??0;return E!==S?S-E:y.priority!==v.priority?y.priority-v.priority:y.id-v.id}),JSON.stringify({features:d.slice(0,o),count:Math.min(d.length,o),total_ready:d.length})}finally{s.close()}}function ve(o=20){let s=x();try{let u=s.query("SELECT * FROM features").map(p=>({id:p.id,priority:p.priority,category:p.category,name:p.name,description:p.description,steps:JSON.parse(p.steps||"[]"),passes:!!p.passes,in_progress:!!p.in_progress,dependencies:p.dependencies?JSON.parse(p.dependencies):null})),l=new Set(u.filter(p=>p.passes).map(p=>p.id)),d=[];for(let p of u){if(p.passes)continue;let v=(p.dependencies||[]).filter(E=>!l.has(E));v.length>0&&d.push({...p,blocked_by:v})}return JSON.stringify({features:d.slice(0,o),count:Math.min(d.length,o),total_blocked:d.length})}finally{s.close()}}function Ae(){let o=x();try{let c=o.query("SELECT * FROM features").map(p=>({id:p.id,priority:p.priority,category:p.category,name:p.name,description:p.description,steps:JSON.parse(p.steps||"[]"),passes:!!p.passes,in_progress:!!p.in_progress,dependencies:p.dependencies?JSON.parse(p.dependencies):null})),u=new Set(c.filter(p=>p.passes).map(p=>p.id)),l=[],d=[];for(let p of c){let y=p.dependencies||[],v=y.filter(S=>!u.has(S)),E;p.passes?E="done":v.length>0?E="blocked":p.in_progress?E="in_progress":E="pending",l.push({id:p.id,name:p.name,category:p.category,status:E,priority:p.priority,dependencies:y});for(let S of y)d.push({source:S,target:p.id})}return JSON.stringify({nodes:l,edges:d})}finally{o.close()}}function be(o,s){let c=x();try{if(s.includes(o))return JSON.stringify({error:"A feature cannot depend on itself"});if(s.length>20)return JSON.stringify({error:`Maximum ${20} dependencies allowed`});if(new Set(s).size!==s.length)return JSON.stringify({error:"Duplicate dependencies not allowed"});if(c.query("SELECT * FROM features WHERE id = ?",o).length===0)return JSON.stringify({error:`Feature ${o} not found`});let l=c.query("SELECT * FROM features"),d=new Set(l.map(_=>_.id)),p=s.filter(_=>!d.has(_));if(p.length>0)return JSON.stringify({error:`Dependencies not found: ${JSON.stringify(p)}`});let v=l.map(_=>({id:_.id,priority:_.priority,category:_.category,name:_.name,description:_.description,steps:JSON.parse(_.steps||"[]"),passes:!!_.passes,in_progress:!!_.in_progress,dependencies:_.dependencies?JSON.parse(_.dependencies):null})).map(_=>_.id===o?{..._,dependencies:s}:_);for(let _ of s)if(U(v,o,_))return JSON.stringify({error:`Cannot add dependency ${_}: would create circular dependency`});let E=s.length>0?[...s].sort((_,r)=>_-r):[],S=E.length>0?JSON.stringify(E):null;return c.execute("UPDATE features SET dependencies = ? WHERE id = ?",S,o),JSON.stringify({success:!0,feature_id:o,dependencies:E})}catch(u){return JSON.stringify({error:`Failed to set dependencies: ${u}`})}finally{c.close()}}import{z as m}from"zod";var Oe=m.object({feature_id:m.number().int().min(1).describe("The ID of the feature to mark as passing")}),Ne=m.object({feature_id:m.number().int().min(1).describe("The ID of the feature to mark as failing")}),xe=m.object({feature_id:m.number().int().min(1).describe("The ID of the feature to skip")}),Te=m.object({feature_id:m.number().int().min(1).describe("The ID of the feature to mark as in-progress")}),we=m.object({feature_id:m.number().int().min(1).describe("The ID of the feature to clear in-progress status")}),ar=m.object({feature_id:m.number().int().min(1).describe("The ID of the feature to retrieve")}),Ie=m.object({feature_id:m.number().int().min(1).describe("The ID of the feature to claim")}),ot=m.object({category:m.string().min(1).max(100).describe("Feature category"),name:m.string().min(1).max(255).describe("Feature name"),description:m.string().min(1).describe("Detailed description"),steps:m.array(m.string()).min(1).describe("Implementation/test steps"),depends_on_indices:m.array(m.number().int().min(0)).optional().describe("Array indices of features in batch that this feature depends on")}),Ce=m.object({features:m.array(ot).min(1).describe("List of features to create")}),Le=m.object({category:m.string().min(1).max(100).describe('Feature category (e.g., "Authentication", "API", "UI")'),name:m.string().min(1).max(255).describe("Feature name"),description:m.string().min(1).describe("Detailed description of the feature"),steps:m.array(m.string()).min(1).describe("List of implementation/verification steps")}),Re=m.object({feature_id:m.number().int().min(1).describe("Feature to add dependency to"),dependency_id:m.number().int().min(1).describe("ID of the dependency feature")}),ke=m.object({feature_id:m.number().int().min(1).describe("Feature to remove dependency from"),dependency_id:m.number().int().min(1).describe("ID of dependency to remove")}),De=m.object({feature_id:m.number().int().min(1).describe("Feature to set dependencies for"),dependency_ids:m.array(m.number().int().min(1)).describe("List of dependency feature IDs")}),Fe=m.object({limit:m.number().int().min(1).max(50).default(10).describe("Max features to return")}),Je=m.object({limit:m.number().int().min(1).max(100).default(20).describe("Max features to return")}),cr=m.object({id:m.number(),priority:m.number(),category:m.string(),name:m.string(),description:m.string(),steps:m.array(m.string()),passes:m.boolean(),in_progress:m.boolean(),dependencies:m.array(m.number()).nullable()}),ur=m.object({passing:m.number(),in_progress:m.number(),total:m.number(),percentage:m.number()}),pr=m.object({success:m.boolean(),feature_id:m.number().optional(),name:m.string().optional(),message:m.string().optional()}),lr=m.object({error:m.string()});var pt=process.env.PROJECT_DIR||".",lt=$e.join(pt,"features.db");oe(lt);var O=new at({name:"features",version:"1.0.0"});O.registerTool("feature_get_stats",{title:"Get Feature Statistics",description:"Get statistics about feature completion progress. Returns passing, in-progress, total, and percentage.",inputSchema:J.object({})},async()=>{let o=ae();return{content:[{type:"text",text:o}],structuredContent:JSON.parse(o)}});O.registerTool("feature_get_by_id",{title:"Get Feature By ID",description:"Get a specific feature by its ID with full details",inputSchema:J.object({feature_id:J.number().int().min(1).describe("The ID of the feature to retrieve")})},async({feature_id:o})=>{let s=ce(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_get_summary",{title:"Get Feature Summary",description:"Get minimal feature info: id, name, status, and dependencies only",inputSchema:J.object({feature_id:J.number().int().min(1).describe("The ID of the feature")})},async({feature_id:o})=>{let s=ue(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_mark_passing",{title:"Mark Feature as Passing",description:"Mark a feature as passing after successful implementation",inputSchema:Oe},async({feature_id:o})=>{let s=pe(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_mark_failing",{title:"Mark Feature as Failing",description:"Mark a feature as failing after finding a regression",inputSchema:Ne},async({feature_id:o})=>{let s=le(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_skip",{title:"Skip Feature",description:"Skip a feature by moving it to the end of the priority queue",inputSchema:xe},async({feature_id:o})=>{let s=fe(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_mark_in_progress",{title:"Mark Feature In Progress",description:"Mark a feature as in-progress to prevent other agents from working on it",inputSchema:Te},async({feature_id:o})=>{let s=de(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_claim_and_get",{title:"Claim and Get Feature",description:"Atomically claim a feature (mark in-progress) and return its full details",inputSchema:Ie},async({feature_id:o})=>{let s=he(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_clear_in_progress",{title:"Clear In Progress Status",description:"Clear in-progress status from a feature",inputSchema:we},async({feature_id:o})=>{let s=ye(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_create_bulk",{title:"Create Multiple Features",description:"Create multiple features in a single operation with dependencies",inputSchema:Ce},async({features:o})=>{let s=ge(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_create",{title:"Create Single Feature",description:"Create a single feature in the project backlog",inputSchema:Le},async({category:o,name:s,description:c,steps:u})=>{let l=me(o,s,c,u);return{content:[{type:"text",text:l}],structuredContent:JSON.parse(l)}});O.registerTool("feature_add_dependency",{title:"Add Dependency",description:"Add a dependency relationship between features",inputSchema:Re},async({feature_id:o,dependency_id:s})=>{let c=_e(o,s);return{content:[{type:"text",text:c}],structuredContent:JSON.parse(c)}});O.registerTool("feature_remove_dependency",{title:"Remove Dependency",description:"Remove a dependency from a feature",inputSchema:ke},async({feature_id:o,dependency_id:s})=>{let c=Ee(o,s);return{content:[{type:"text",text:c}],structuredContent:JSON.parse(c)}});O.registerTool("feature_get_ready",{title:"Get Ready Features",description:"Get all features ready to start (dependencies satisfied, not in progress)",inputSchema:Fe},async({limit:o=10})=>{let s=Se(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_get_blocked",{title:"Get Blocked Features",description:"Get features that are blocked by unmet dependencies",inputSchema:Je},async({limit:o=20})=>{let s=ve(o);return{content:[{type:"text",text:s}],structuredContent:JSON.parse(s)}});O.registerTool("feature_get_graph",{title:"Get Dependency Graph",description:"Get dependency graph data for visualization",inputSchema:{}},async()=>{let o=Ae();return{content:[{type:"text",text:o}],structuredContent:JSON.parse(o)}});O.registerTool("feature_set_dependencies",{title:"Set All Dependencies",description:"Set all dependencies for a feature at once, replacing any existing dependencies",inputSchema:De},async({feature_id:o,dependency_ids:s})=>{let c=be(o,s);return{content:[{type:"text",text:c}],structuredContent:JSON.parse(c)}});function ft(){let o=process.argv.slice(2),s="stdio",c=8080,u,l;for(let d=0;d<o.length;d++){let p=o[d];p==="--http"?s="http":p==="--https"?s="https":p==="--port"&&d+1<o.length?(c=parseInt(o[d+1],10),d++):p==="--cert"&&d+1<o.length?(u=o[d+1],d++):p==="--key"&&d+1<o.length&&(l=o[d+1],d++)}return{mode:s,port:c,certPath:u,keyPath:l}}async function dt(){let o=new ct;await O.connect(o),console.error("MCP server running on stdio")}async function ht(o){let s=z();s.use(z.json());let c={};s.post("/mcp",async(u,l)=>{let d=u.headers["mcp-session-id"],p;if(d&&c[d])p=c[d];else if(!d&&Pe(u.body))p=new je({sessionIdGenerator:()=>Ue(),onsessioninitialized:y=>{c[y]=p,console.error("Session initialized:",y)},onsessionclosed:y=>{delete c[y],console.error("Session closed:",y)}}),p.onclose=()=>{p.sessionId&&delete c[p.sessionId]},await O.connect(p);else{l.status(400).json({jsonrpc:"2.0",error:{code:-32e3,message:"Invalid session"},id:null});return}await p.handleRequest(u,l,u.body)}),s.get("/mcp",async(u,l)=>{let d=u.headers["mcp-session-id"],p=c[d];p?await p.handleRequest(u,l):l.status(400).send("Invalid session")}),s.delete("/mcp",async(u,l)=>{let d=u.headers["mcp-session-id"],p=c[d];p?await p.handleRequest(u,l):l.status(400).send("Invalid session")}),s.listen(o,()=>{console.error(`MCP server running on http://localhost:${o}/mcp`)})}async function yt(o,s,c){if(!s||!c)throw new Error("HTTPS mode requires --cert and --key arguments");let u=z();u.use(z.json());let l={};u.post("/mcp",async(p,y)=>{let v=p.headers["mcp-session-id"],E;if(v&&l[v])E=l[v];else if(!v&&Pe(p.body))E=new je({sessionIdGenerator:()=>Ue(),onsessioninitialized:S=>{l[S]=E,console.error("Session initialized:",S)},onsessionclosed:S=>{delete l[S],console.error("Session closed:",S)}}),E.onclose=()=>{E.sessionId&&delete l[E.sessionId]},await O.connect(E);else{y.status(400).json({jsonrpc:"2.0",error:{code:-32e3,message:"Invalid session"},id:null});return}await E.handleRequest(p,y,p.body)}),u.get("/mcp",async(p,y)=>{let v=p.headers["mcp-session-id"],E=l[v];E?await E.handleRequest(p,y):y.status(400).send("Invalid session")}),u.delete("/mcp",async(p,y)=>{let v=p.headers["mcp-session-id"],E=l[v];E?await E.handleRequest(p,y):y.status(400).send("Invalid session")}),ut({cert:Me(s),key:Me(c)},u).listen(o,()=>{console.error(`MCP server running on https://localhost:${o}/mcp`)})}async function gt(){let{mode:o,port:s,certPath:c,keyPath:u}=ft();process.on("SIGINT",()=>{W(),process.exit(0)}),process.on("SIGTERM",()=>{W(),process.exit(0)}),o==="http"?await ht(s):o==="https"?await yt(s,c,u):await dt()}gt().catch(o=>{console.error("Server error:",o),W(),process.exit(1)});
Raw
mcp.json
{
"servers": {
"gcapnias/feature-mcp-server": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"https://gist.github.com/gcapnias/e04577c11a78f02dc76f6e298f87c6ad"
],
"cwd": "./"
}
}
}
Raw
package.json
{
"name": "@gcapnias/tasks-mcp-server",
"version": "0.0.1",
"type": "module",
"bin": {
"tasks-mcp-server": "index.js"
},
"scripts": {
"build": "esbuild src/index.ts --platform=node --format=esm --banner:js=\"#!/usr/bin/env node\" --outfile=dist/index.js && node -e \"require('fs').chmodSync('dist/index.js', 0o755)\"",
"dev": "pnpm build --watch",
"start": "node dist/index.js",
"clean": "rm -rf dist",
"test": "vitest run",
"test:watch": "vitest"
},
"dependencies": {
"@modelcontextprotocol/sdk": "^1.26.0",
"@types/express": "5.0.6",
"express": "5.2.1",
"zod": "^4.3.6"
},
"devDependencies": {
"@types/node": "^25.2.3",
"esbuild": "^0.27.3",
"typescript": "^5.9.3",
"vitest": "^4.0.18"
}
}
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