Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add commands/agentis-tools/ctx/shellgit clone --depth 1 https://github.com/agentis-tools/ctxWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00000 | $0.01075 |
| Opus 5 | $0.00000 | $0.00537 |
| Sonnet 5 | $0.00000 | $0.00215 |
| Haiku 4.5 | $0.00000 | $0.00108 |
Grade A, and why
shell scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ctx shell
Interactive shell for exploring your codebase.
Synopsis
ctx shell [OPTIONS]
Description
The shell command starts an interactive REPL for exploring your indexed codebase. It provides:
- Quick searches - Find symbols without typing full commands
- Tab completion - Auto-complete commands and arguments
- History - Navigate previous commands with arrow keys
- Vi/Emacs modes - Choose your preferred editing style
Prerequisites
Index your codebase first:
ctx index
Options
| Option | Description | Default |
|---|---|---|
--history <PATH> |
History file location | ~/.ctx_history |
--no-history |
Disable command history | false |
--vi |
Use vi editing mode | false (emacs) |
Shell Commands
| Command | Description | Example |
|---|---|---|
find <pattern> |
Search symbols by name | find auth |
search <query> |
Semantic search | search "user login" |
callers <symbol> |
Show callers | callers handleRequest |
callees <symbol> |
Show callees | callees main |
deps <symbol> |
Show dependencies | deps UserService |
source <symbol> |
Show source code | source authenticate |
explain <symbol> |
Detailed symbol info | explain Config |
files |
List indexed files | files |
stats |
Show codebase stats | stats |
help |
Show available commands | help |
exit / quit |
Exit the shell | exit |
Built-in Commands
| Command | Description |
|---|---|
cd <path> |
Change working directory |
pwd |
Show current directory |
history |
Show command history |
clear |
Clear screen |
Examples
Start Shell
ctx shell
Output:
ctx shell - Interactive codebase explorer
Type 'help' for available commands, 'exit' to quit.
ctx> _
Find Symbols
ctx> find handle
Found 12 symbols:
handleRequest function src/server.rs:45
handleAuth function src/auth.rs:23
handleError function src/error.rs:12
RequestHandler struct src/types.rs:89
...
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 185 lines · 0 tokens per session scan A e6e6ef911546
shell is a command published in the GitHub repository agentis-tools/ctx (11 stars, last pushed 15d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 1,075 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other commands, from other repositories
coograph-review
Review the changes in scope for spec compliance, convention violations, logic bugs, and architectural issues. You review — you do not author. Never edit files.
coograph-verify
Verify that the described work is complete and correct. Provide evidence for every claim. You verify — you do not implement or fix style.
api-gen
Generate REST API endpoints with routes, validation, error handling, and tests.
component-gen
Generate React or Vue components with prop types, styling, accessibility, and tests.
code-review
Review staged git changes for bugs, security issues, and style violations.
pr-description
Generate a PR title and description from the current branch diff against main.