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Agent skill

Palantir Common Errors

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Diagnose Foundry API, Ontology, permission, and transform-build failures from bounded evidence.

MITAuto-check passedBackend & APIs

Install Palantir Common Errors

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill palantir-common-errors -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace palantir-common-errors --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/palantir-common-errors .claude/skills/palantir-common-errors && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
palantir-common-errors
GitHub stars
2.8k
Token cost
~1.4k tokens
SKILL.md length
677 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Diagnose Foundry API, Ontology, permission, and transform-build failures from bounded evidence.

  • Works in 5 steps: Classify the failure as authentication,… → Preserve the smallest complete evidence… → For auth failures, evaluate token… → …
  • An operator sees authentication
  • SKILL.md covers Overview, Prerequisites, Current Contract and Authentication, plus 8 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Palantir Common Errors is an agent skill from jeremylongshore/tons-of-skills-marketplace. Diagnose Foundry API, Ontology, permission, and transform-build failures from bounded evidence. Use when an operator sees authentication, authorization, throttling, missing-resource, dependency, or build errors. Trigger with "Foundry error" or "Palantir 403".

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-docs.md`). Compatibility notes: Requires current Palantir Foundry documentation and approved access for any live resource, permission, data, build, application, or deployment change

It sits in Backend & APIs, covering Authentication and Authorization and RBAC. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • An operator sees authentication
  • Missing-resource
  • With Foundry error

Example prompts

  • “Foundry error”
  • “Palantir 403”
  • “/palantir-common-errors”

Requirements

  • Compatibility (from SKILL.md): Requires current Palantir Foundry documentation and approved access for any live resource, permission, data, build, application, or deployment change
  • Pre-approved tools (allowed-tools): Read, Glob, Grep, Write, Edit

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Classify the failure as authentication, authorization, limit/concurrency, resource identity, dependency, transform logic, or platform…
  2. Preserve the smallest complete evidence set: request ID, build ID, branch, commit, principal type, scope names, and affected RIDs or API…
  3. For auth failures, evaluate token validity, scope, application restrictions, project role, and mandatory markings in that order.
  4. For 429 or 503, honor server guidance and apply bounded exponential backoff with jitter; reduce concurrency before retrying.
  5. For build failures, inspect the detailed report, compare preview and full inputs, and test the minimal failing transform on a sandbox…

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Glob
    • Grep
    • Write
    • Edit

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Requires current Palantir Foundry documentation and approved access for any live resource, permission, data, build, application, or deployment change

    From compatibility in the SKILL.md frontmatter.

Context cost

Palantir Common Errors loads about 1.4k tokens when it runs, and up to ~1.7k if it reads all its reference files. Until then it costs about 71 tokens; SKILL.md has 677 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~71
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.7k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 677 words, ~1,448 tokens.

Download SKILL.mdSave it as .claude/skills/palantir-common-errors/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
palantir-common-errors
description
Diagnose Foundry API, Ontology, permission, and transform-build failures from bounded evidence. Use when an operator sees authentication, authorization, throttling, missing-resource, dependency, or build errors. Trigger with "Foundry error" or "Palantir 403".
allowed-tools
Read, Glob, Grep, Write, Edit
compatibility
Requires current Palantir Foundry documentation and approved access for any live resource, permission, data, build, application, or deployment change
version
2.0.0
argument-hint
[error-or-build-id]
model
inherit
effort
high
author
Jeremy Longshore <jeremy@intentsolutions.io>
license
MIT
tags
saas, palantir, foundry, troubleshooting, api

Palantir Foundry Error Triage

Overview

Triage the failing surface before changing credentials, permissions, code, or compute. Preserve the server request identifier and Foundry build evidence so similar-looking failures are not collapsed into the same cause.

Prerequisites

  • Capture the exact status code or Foundry error name, request identifier, timestamp, endpoint or build, and affected principal.
  • Identify whether the call uses a temporary user token, authorization-code token, or client-credentials service user.
  • Read references/official-docs.md; use the API reference and in-platform build report as the current contract.
  • Reproduce with a read-only request or sandbox branch whenever possible.

Current Contract

  • A 401 points to missing, malformed, expired, or otherwise unusable authentication; it does not justify broader scope.
  • A 403 can result from the intersection of token scope, application restrictions, user/service-user permissions, project roles, and mandatory controls.
  • Foundry documents global rate and concurrency limits, while individual endpoints may impose stricter limits and return 429 or 503.
  • Transform preview and full build can differ because preview may use a subset of data; repository checks also evaluate dependencies and declared resources.

Authentication

All Foundry REST API calls use OAuth 2.0 bearer tokens. Never print or persist a token in the triage report. Record the grant type, requested scopes, Developer Console restrictions, and effective user or service-user permissions without recording credential values.

Instructions

  1. Classify the failure as authentication, authorization, limit/concurrency, resource identity, dependency, transform logic, or platform availability.

  2. Preserve the smallest complete evidence set: request ID, build ID, branch, commit, principal type, scope names, and affected RIDs or API names.

  3. For auth failures, evaluate token validity, scope, application restrictions, project role, and mandatory markings in that order.

  4. For 429 or 503, honor server guidance and apply bounded exponential backoff with jitter; reduce concurrency before retrying.

  5. For build failures, inspect the detailed report, compare preview and full inputs, and test the minimal failing transform on a sandbox branch.

Tool Discipline

  • Use Glob to locate candidate repositories, manifests, configurations, and evidence without widening scope.
  • Use Grep to find relevant identifiers, declarations, permissions, errors, and stale claims.
  • Use Read to inspect the smallest required files and authoritative evidence.
  • Use Write only for a new approved local draft, test, manifest, or evidence artifact.
  • Use Edit only for a bounded approved change whose rollback is known.
  • Do not use file tools as a substitute for authenticated Foundry operations or owner approval.

Approval Boundaries

Permission grants, application-restriction changes, marking access, token replacement, and production rebuilds require their respective owners. A diagnosis does not authorize any of those mutations.

Show full SKILL.md (259 more words)Show less

Output

A triage record with classification, evidence, ruled-out causes, confirmed cause, minimum remediation, approval owner, validation request, and rollback. Redact tokens, personal data, and sensitive resource names when the audience does not need them.

Error Handling

ConditionResponse
Request ID is missingReproduce once with a safe read-only operation and capture response headers; otherwise report the evidence gap.
A new token still gets 403Stop rotating credentials and evaluate scopes, app restrictions, project roles, and mandatory controls.
Retries increase throttlingCancel the retry loop, reduce concurrency, honor server timing, and contact Palantir Support if disruption persists.
Preview passes but build failsUse the full build report and production input characteristics; do not treat preview as proof of production success.

Examples

Example 1

Triage an Ontology read that changed from 200 to 403 by checking the client-credentials service user, requested scope, Developer Console resource restrictions, project role, and required markings.

Example 2

Resolve a repeated transform check failure by preserving the build ID, identifying a missing dependency in the repository environment, fixing it on a branch, and rerunning the Foundry check.

Validation

  • The diagnosis cites an exact request or build and an exact principal.
  • Authentication and authorization are analyzed as separate layers.
  • Backoff is bounded and used only for retryable 429 or 503 responses.
  • The proposed remediation is the minimum change that addresses the confirmed cause.
  • The post-fix request or build proves recovery without expanding access.

Resources

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/.curated/palantir-common-errors of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/official-docs.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

Palantir Common Errors next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Palantir Common Errors compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Palantir Common Errors this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.4kAutomated safety check: PassMIT
Cognitoitsmostafa/aws-agent-skills1.2k1 repos~2.3kAutomated safety check: PassMIT
Auth Implementation Patternsynulihao/AgentSkillOS61810 repos~4.4kAutomated safety check: PassNone
Configuration Cryptogreenpau/caddy-security2.3k—~3.5kAutomated safety check: PassApache-2.0
Supercheck Security Authsupercheck-io/supercheck215—~1.2kAutomated safety check: PassAGPL-3.0
Bkend Authww-w-ai/bkit-claude-code601—~937Automated safety check: NotesApache-2.0

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Categories

Questions about Palantir Common Errors

What does Palantir Common Errors do?

Diagnose Foundry API, Ontology, permission, and transform-build failures from bounded evidence. Palantir Common Errors is an agent skill from jeremylongshore/tons-of-skills-marketplace. Diagnose Foundry API, Ontology, permission, and transform-build failures from bounded evidence.

When should I use Palantir Common Errors?

Palantir Common Errors fits situations like: an operator sees authentication; missing-resource; with Foundry error.

How do I install Palantir Common Errors in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill palantir-common-errors -a claude-code`. Or copy the skill folder (skills/.curated/palantir-common-errors in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/palantir-common-errors in your project. Claude Code loads it when a task matches its description.

How do I install Palantir Common Errors in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill palantir-common-errors -a codex`. Or copy the skill folder (skills/.curated/palantir-common-errors in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/palantir-common-errors in your project. Codex loads it when a task matches its description.

Can I use Palantir Common Errors in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill palantir-common-errors -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/palantir-common-errors, .gemini/skills/palantir-common-errors, .github/skills/palantir-common-errors and .opencode/skills/palantir-common-errors in your project.

What does Palantir Common Errors need to run?

SKILL.md names no scripts, command-line tools or credentials: Palantir Common Errors is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, Write, Edit. Compatibility (from SKILL.md): Requires current Palantir Foundry documentation and approved access for any live resource, permission, data, build, application, or deployment change.

Does Palantir Common Errors access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Palantir Common Errors safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Palantir Common Errors use?

Palantir Common Errors is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Palantir Common Errors use?

About 1.4k tokens (SKILL.md is roughly 5.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 259 tokens, read only when the agent opens those files.

What are the alternatives to Palantir Common Errors?

Skills that share tags, products or a category with Palantir Common Errors: Cognito (itsmostafa/aws-agent-skills, 1.2k stars), Auth Implementation Patterns (ynulihao/AgentSkillOS, 618 stars), Configuration Crypto (greenpau/caddy-security, 2.3k stars) and Supercheck Security Auth (supercheck-io/supercheck, 215 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Palantir Common Errors?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.