using-glean-code

A guide for exploring source code across an organization's repositories using Glean. Unlike local search tools, it can look beyond the repository currently open on your computer.

In plain words
What is it for?
Use it to find where a system lives, understand how it works, locate similar patterns, identify contributors, and research existing code before designing a change.
Why use it?
It helps when the needed implementation, example, or code owner is somewhere else in the organization and would be missed by searching only the current project.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/gleanwork/cursor-plugins/using-glean-code
Any agent
npx skills add gleanwork/cursor-plugins --skill using-glean-code
Clone the repo
git clone --depth 1 https://github.com/gleanwork/cursor-plugins

Made for: Claude Code, Codex.

Per session 151 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,065 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5 $0.00151 $0.01065
Opus 5 $0.00076 $0.00532
Sonnet 5 $0.00030 $0.00213
Haiku 4.5 $0.00015 $0.00106

Measured yesterday against content hash 76177047b961, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

using-glean-code 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.

Origin

This is a copy

100% identical to using-glean-code — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

glean/skills/using-glean-code/SKILL.md · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Using Glean for Code Exploration

Glean indexes source code across the organization's connected repositories. Local tools (Grep, Glob, Read) see only the current repo; this skill is for everything else.

When to reach for this

  • Finding the system — "Where does our payments code live?"
  • Finding the patterns — "How do other teams handle rate limiting?"
  • Finding the people — combining code authorship with employee_search reveals real owners (not just titled ones)
  • Prior art before designing — see reference/plan-prep.md for the research-before-plan workflow
  • Cross-repo exploration — understanding systems, mapping breadth, finding contributors across the organization

The tool you'll mostly use

This skill drives the code_search MCP tool. For full param shape, inline filter syntax, and pitfalls (quoting names, the app: filter not applying, recency caveats), read ../using-glean/reference/code-search.md. That is the canonical reference; this skill carries the workflow on top.

For this skill's own workflow patterns, see:

  • reference/exploration.md — exploring an unfamiliar system across repos: what to search for, what to filter, what to present
  • reference/plan-prep.md — gathering enterprise context before entering plan mode for architectural / strategic work

Vetting

Not every match is worth surfacing. Code in legacy/, deprecated/, archive/, abandoned repos, or files with extensive TODO/FIXME comments will mislead the user. Apply the criteria in ../using-glean/reference/vetting.md and prefer 3 high-quality matches over 10 unfiltered ones.

Quality test

  • Is this good code to reference?
  • GOOD: Clean, tested, actively maintained
  • ACCEPTABLE: Works but has caveats
  • POOR: Hacky, deprecated, abandoned

Recency test

  • Is this code maintained?
  • ACTIVE: Commits in past 3 months
  • SLOWING: 3–12 months since last commit
  • STALE: 12+ months — likely outdated patterns

Read the full file on GitHub · 83 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. yesterday First seen · 83 lines · 151 tokens per session scan A 76177047b961

Subscribe to this mod's changes

using-glean-code is a skill published in the GitHub repository gleanwork/cursor-plugins (3 stars, last pushed 12d ago), licensed MIT. It adds 151 tokens to every session and 1,065 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to using-glean-code, differing in 0 lines, and is treated as a copy.

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