Skip to content
Development
PopularHook

Hooks

What ecc runs automatically, and when. A hook is a command Claude Code fires at a fixed moment, without you asking for it.

From plugin
ecc
239k200 skills72 agents109 commands7 hooks
+1
Install
> /plugin marketplace add affaan-m/ECC
> /plugin install ecc@ecc

Ships with ecc. Installing the plugin gets these hooks.

What fires, and when

PreToolUse

  • MatchesBashnode -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • MatchesWritenode -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • MatchesEdit|Writenode -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • Matches*node -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • MatchesBash|Write|Edit|MultiEditnode -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • MatchesWrite|Edit|MultiEditnode -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • Matches*node -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • MatchesEdit|Write|MultiEditnode -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc

PreCompact

  • Matches*node -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc

SessionStart

Fires once when a session begins, and again after a context compaction. It is where a plugin sets up its environment, or restores state the compaction dropped.

  • Matches*node -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • Matches*node -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc

PostToolUse

  • Matches*node -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc
  • Matches*node -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc

PostToolUseFailure

  • Matches*node -e "const p=require('path');const r=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_PLUGIN_ROOT;if(e&&e.trim())return e.trim();var d=p.join(o.homedir(),'.claude');function L(x){try{return require(p.join(x,'scripts','lib','resolve-ecc-root')).resolveEcc

Stop

  • Matches*node -e "const fs=require('fs');const path=require('path');const {spawnSync}=require('child_process');const raw=fs.readFileSync(0,'utf8');const finish=(out,err,code)=>{let pending=1;const done=()=>{pending-=1;if(pending===0)process.exit(code);};if(out){pending+=1;process.stdout.write(out,done);}if(e
  • Matches*node -e "const fs=require('fs');const path=require('path');const {spawnSync}=require('child_process');const raw=fs.readFileSync(0,'utf8');const finish=(out,err,code)=>{let pending=1;const done=()=>{pending-=1;if(pending===0)process.exit(code);};if(out){pending+=1;process.stdout.write(out,done);}if(e
  • Matches*node -e "const fs=require('fs');const path=require('path');const {spawnSync}=require('child_process');const raw=fs.readFileSync(0,'utf8');const finish=(out,err,code)=>{let pending=1;const done=()=>{pending-=1;if(pending===0)process.exit(code);};if(out){pending+=1;process.stdout.write(out,done);}if(e
  • Matches*node -e "const fs=require('fs');const path=require('path');const {spawnSync}=require('child_process');const raw=fs.readFileSync(0,'utf8');const finish=(out,err,code)=>{let pending=1;const done=()=>{pending-=1;if(pending===0)process.exit(code);};if(out){pending+=1;process.stdout.write(out,done);}if(e
  • Matches*node -e "const fs=require('fs');const path=require('path');const {spawnSync}=require('child_process');const raw=fs.readFileSync(0,'utf8');const finish=(out,err,code)=>{let pending=1;const done=()=>{pending-=1;if(pending===0)process.exit(code);};if(out){pending+=1;process.stdout.write(out,done);}if(e
  • Matches*node -e "const fs=require('fs');const path=require('path');const {spawnSync}=require('child_process');const raw=fs.readFileSync(0,'utf8');const finish=(out,err,code)=>{let pending=1;const done=()=>{pending-=1;if(pending===0)process.exit(code);};if(out){pending+=1;process.stdout.write(out,done);}if(e

SessionEnd

  • Matches*node -e "const fs=require('fs');const path=require('path');const {spawnSync}=require('child_process');const raw=fs.readFileSync(0,'utf8');const rel=path.join('scripts','hooks','run-with-flags.js');const root=(function(){var p=require('path'),f=require('fs'),o=require('os');var e=process.env.CLAUDE_P
Read hooks/hooks.json
Ships withecc

Your agent can write code, but ECC gives it a coordinated engineering system and toolbox: it plans before it builds, verifies changes with tests, reviews its own work from a fresh context, remembers what matters, and turns repeated wins into reusable skills

Get the whole plugin