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1//! The MCP server's tools: a few resource tools, each with an `action`.
2//!
3//! Every operation is one action of one tool. A call is dispatched to the
4//! operation it names, so permissions, the audit log, billing and outcomes
5//! are exactly those of the REST API. A token sees only the actions its
6//! scopes allow, and a tool none of whose actions it may use is not listed.
7//!
8//! The listed input schema is one flat object: `action`, then every field
9//! any of its actions takes. Which fields each action needs is in the
10//! `action` field's description and checked on every call. Claude's API,
11//! and so most MCP clients, refuse a tool whose input schema has `oneOf`
12//! at its top level, so the schema keyed by action, with each action's
13//! required fields, is [`discriminated`], published on the server's card
14//! and in the docs.
15
16use g1t_contracts::credentials::NEVER;
17use g1t_contracts::identity::AgentScope;
18use g1t_contracts::scopes::{Level, NO_SCOPE, TokenAccess, scope_for};
19use serde_json::{Map, Value, json};
20
21use crate::about::AboutOp;
22use crate::artifacts::ArtifactsOp;
23use crate::deploy_keys::DeployKeysOp;
24use crate::mirrors::MirrorsOp;
25use crate::deployments::DeploymentsOp;
26use crate::packages::PackagesOp;
27use crate::protection::ProtectionOp;
28use crate::token_policy::TokenOp;
29use crate::operations::Op;
30use crate::checks::ChecksOp;
31use crate::rules::RulesOp;
32use crate::security::SecurityOp;
33
34pub struct Action {
35 pub name: &'static str,
36 pub op: Op,
37 /// One line, for the `action` field's description.
38 pub summary: &'static str,
39}
40
41pub struct Tool {
42 pub name: &'static str,
43 pub title: &'static str,
44 /// What it is for, in a sentence or two.
45 pub description: &'static str,
46 pub actions: &'static [Action],
47 /// The action a call without one runs.
48 pub default_action: Option<&'static str>,
49}
50
51const fn a(name: &'static str, op: Op, summary: &'static str) -> Action {
52 Action { name, op, summary }
53}
54
55pub const TOOLS: &[Tool] = &[
56 Tool {
57 name: "search",
58 title: "Search",
59 description: "Find things. `code` (the default) searches all of g1t you can see: repositories, code, issues, pull requests and people, with qualifiers like repo:owner/name, language:rust, is:issue. `context` searches one workspace's catalog, docs, issues and memory by meaning.",
60 default_action: Some("code"),
61 actions: &[
62 a("code", Op::Search, "Search all of g1t: repositories, code, issues, pull requests, people"),
63 a("context", Op::SearchContext, "Search a workspace's context hub by meaning"),
64 a("entity", Op::GetEntity, "One catalog entry and its relations"),
65 a("ticket", Op::GetContext, "A Jira, Linear or Sentry item the work refers to, as it is now"),
66 ],
67 },
68 Tool {
69 name: "repository",
70 title: "Repositories",
71 description: "Repositories: find, read and create them, change their settings and rulesets (what may happen to branches and tags, and what a pull request needs to merge), check their CODEOWNERS file, manage their labels and milestones, see and dismiss their security alerts (secrets and vulnerable dependencies), read what their default branch says (languages, contributors, license), star them, publish releases, and look after their mirroring (take a mirror over, hand it back, or move it to g1t for good). Name one as \"owner/name\". Deleting, transferring and changing visibility need `confirm`.",
72 default_action: None,
73 actions: &[
74 a("list", Op::ListRepos, "Repositories you can see"),
75 a("get", Op::GetRepo, "One repository"),
76 a("create", Op::CreateRepo, "Create one, empty or copied from a public git URL"),
77 a("update", Op::UpdateRepo, "Change description, website, topics, default branch, protection"),
78 a("get_settings", Op::GetRepoSettings, "How pull requests merge, and the default branch's protection as its rules stack"),
79 a("update_settings", Op::UpdateRepoSettings, "Change how pull requests merge and the default branch protection ruleset"),
80 a("check_names", Op::ListCheckNames, "Check names reported lately, to require in a ruleset"),
81 a("list_rulesets", Op::Rules(RulesOp::ListRepoRulesets), "Its rulesets, and its workspace's that hold in it"),
82 a("get_ruleset", Op::Rules(RulesOp::GetRepoRuleset), "One ruleset"),
83 a("create_ruleset", Op::Rules(RulesOp::CreateRepoRuleset), "Create a ruleset for its branches or tags"),
84 a("update_ruleset", Op::Rules(RulesOp::UpdateRepoRuleset), "Change a ruleset"),
85 a("delete_ruleset", Op::Rules(RulesOp::DeleteRepoRuleset), "Delete a ruleset"),
86 a("branch_rules", Op::Rules(RulesOp::GetBranchRules), "Every rule that holds for a branch or tag, and where it comes from"),
87 a("rule_evaluations", Op::Rules(RulesOp::ListRuleEvaluations), "How its rules judged pushes and merges, with insights"),
88 a("codeowners", Op::GetCodeownersErrors, "Problems in its CODEOWNERS file, by line"),
89 a("list_labels", Op::ListLabels, "Labels, with colors and how many issues and pull requests carry each"),
90 a("create_label", Op::CreateLabel, "Create a label"),
91 a("update_label", Op::UpdateLabel, "Rename a label or change its color or description"),
92 a("delete_label", Op::DeleteLabel, "Delete a label, from everything that carries it"),
93 a("add_default_labels", Op::AddDefaultLabels, "Add the default labels it is missing"),
94 a("list_milestones", Op::ListMilestones, "Milestones, with progress and due dates"),
95 a("get_milestone", Op::GetMilestone, "One milestone with its issues and pull requests"),
96 a("create_milestone", Op::CreateMilestone, "Create a milestone"),
97 a("update_milestone", Op::UpdateMilestone, "Change a milestone's title, description, due date or state"),
98 a("delete_milestone", Op::DeleteMilestone, "Delete a milestone"),
99 a("list_events", Op::ListEvents, "Timeline: pushes, issues, pull requests, comments"),
100 a("languages", Op::About(AboutOp::GetLanguages), "Its languages by bytes, with colors and percentages"),
101 a("contributors", Op::About(AboutOp::ListContributors), "Who made it: commits per person, agent and author, by week"),
102 a("license", Op::About(AboutOp::GetLicense), "The license its LICENSE file holds"),
103 a("stargazers", Op::About(AboutOp::ListStargazers), "Who starred it"),
104 a("starred", Op::About(AboutOp::CheckStarred), "Whether you starred it, and how many have"),
105 a("star", Op::About(AboutOp::Star), "Star it"),
106 a("unstar", Op::About(AboutOp::Unstar), "Take your star back"),
107 a("list_starred", Op::About(AboutOp::ListStarred), "Repositories you starred"),
108 a("list_releases", Op::About(AboutOp::ListReleases), "Releases, newest first"),
109 a("latest_release", Op::About(AboutOp::GetLatestRelease), "The latest release"),
110 a("get_release", Op::About(AboutOp::GetRelease), "One release by id"),
111 a("get_release_by_tag", Op::About(AboutOp::GetReleaseByTag), "The release of a tag"),
112 a("create_release", Op::About(AboutOp::CreateRelease), "Publish a release of a tag, making the tag if needed"),
113 a("update_release", Op::About(AboutOp::UpdateRelease), "Change a release's title, notes, draft or prerelease"),
114 a("delete_release", Op::About(AboutOp::DeleteRelease), "Delete a release; its tag stays"),
115 a("rename_branch", Op::RenameBranch, "Rename a branch"),
116 a("rename", Op::RenameRepo, "Rename it; old addresses redirect"),
117 a("transfer", Op::TransferRepo, "Move it to another workspace you own"),
118 a("mirror", Op::Mirrors(MirrorsOp::GetMirror), "Its remotes: what it mirrors or is mirrored to"),
119 a("mirror_hand_back_plan", Op::Mirrors(MirrorsOp::GetHandBackPlan), "What handing a takeover back would do, ref by ref"),
120 a("mirror_take_over", Op::Mirrors(MirrorsOp::TakeOver), "Make g1t lead a mirror for now"),
121 a("mirror_ci", Op::Mirrors(MirrorsOp::SetCiFailover), "Run a mirror's workflows on g1t (on), or stop (off)"),
122 a("mirror_hand_back", Op::Mirrors(MirrorsOp::HandBack), "Send a takeover back, deciding diverged refs"),
123 a("mirror_move_to_g1t", Op::Mirrors(MirrorsOp::MoveToG1t), "Stop tracking the remote; g1t leads for good"),
124 a("mirror_sync", Op::Mirrors(MirrorsOp::SyncMirror), "Bring its remotes in step now"),
125 a("mirror_add_remote", Op::Mirrors(MirrorsOp::AddRemote), "Link another g1t or git host"),
126 a("mirror_update_remote", Op::Mirrors(MirrorsOp::UpdateRemote), "Change a remote's settings"),
127 a("mirror_remove_remote", Op::Mirrors(MirrorsOp::RemoveRemote), "Unlink a remote"),
128 a("archive", Op::ArchiveRepo, "Make it read-only"),
129 a("unarchive", Op::UnarchiveRepo, "Make it writable again"),
130 a("set_visibility", Op::SetRepoVisibility, "Make it public or private"),
131 a("delete", Op::DeleteRepo, "Delete it; restorable for 30 days"),
132 a("list_deleted", Op::ListDeletedRepos, "A workspace's deleted repositories"),
133 a("restore", Op::RestoreRepo, "Restore a deleted one"),
134 a("purge", Op::PurgeRepo, "Remove a deleted one for good"),
135 a("security_alerts", Op::ListSecurityAlerts, "Secret and dependency alerts, filtered by state"),
136 a("dismiss_alert", Op::DismissSecurityAlert, "Dismiss an alert with a reason"),
137 a("reopen_alert", Op::ReopenSecurityAlert, "Reopen a dismissed alert"),
138 ],
139 },
140 Tool {
141 name: "issue",
142 title: "Issues",
143 description: "Issues: what should change. Read one before working on it to see the pull requests already made for it. Issues and pull requests share numbers; `comment` works on either.",
144 default_action: None,
145 actions: &[
146 a("list", Op::ListIssues, "Issues on a repository, newest first"),
147 a("get", Op::GetIssue, "One issue with comments and its pull requests"),
148 a("create", Op::CreateIssue, "Open an issue"),
149 a("update", Op::UpdateIssue, "Change title, body, labels, milestone or assignees"),
150 a("labels", Op::ListIssueLabels, "The labels an issue or pull request carries"),
151 a("add_labels", Op::AddIssueLabels, "Add labels to an issue or pull request"),
152 a("set_labels", Op::SetIssueLabels, "Replace the labels of an issue or pull request"),
153 a("remove_labels", Op::RemoveIssueLabels, "Take labels off an issue or pull request"),
154 a("close", Op::CloseIssue, "Close it without a pull request"),
155 a("reopen", Op::ReopenIssue, "Reopen it"),
156 a("comment", Op::AddComment, "Comment on an issue or pull request; path and line for one line of a change"),
157 a("edit_comment", Op::EditComment, "Change a comment's text: your own, or any with the Maintain role"),
158 a("delete_comment", Op::DeleteComment, "Delete a comment: your own, or any with the Maintain role"),
159 a("import", Op::ImportIssue, "Open an issue from a Jira, Linear or Sentry item"),
160 ],
161 },
162 Tool {
163 name: "pull_request",
164 title: "Pull requests",
165 description: "Pull requests: start a change for an issue, record your session, mark it ready, ask people and teams to review, review and merge. Read `overlaps` and `behind` on `get` before going far, and `code_owners` for whose approval it needs.",
166 default_action: None,
167 actions: &[
168 a("list", Op::ListPullRequests, "Pull requests on a repository, newest first"),
169 a("get", Op::GetPullRequest, "Status, checks and required checks, reviews, overlaps, whether it is behind"),
170 a("changes", Op::GetPullRequestChanges, "Files and line-by-line diff"),
171 a("create", Op::CreatePullRequest, "Start a draft with its own fork to push to, or open one from a pushed branch"),
172 a("update", Op::UpdatePullRequest, "Change its base branch, labels, milestone, assignees or reviewers"),
173 a("record_session", Op::RecordSession, "Append prompt, reasoning and tool entries to its session"),
174 a("read_session", Op::ReadSession, "Its recorded session"),
175 a("ready", Op::MarkPullRequestReady, "Mark a draft ready, with a summary"),
176 a("draft", Op::ConvertPullRequestToDraft, "Turn it back into a draft"),
177 a("request_reviewers", Op::RequestReviewers, "Ask people or teams to review it"),
178 a("remove_requested_reviewers", Op::RemoveRequestedReviewers, "Stop asking people or teams to review it"),
179 a("review", Op::ReviewPullRequest, "Approve or request changes"),
180 a("close", Op::ClosePullRequest, "Close without merging"),
181 a("reopen", Op::ReopenPullRequest, "Reopen a closed one"),
182 a("merge", Op::MergePullRequest, "Land it, or join the merge queue"),
183 a("merge_queue", Op::GetMergeQueue, "The repository's merge queue"),
184 ],
185 },
186 Tool {
187 name: "agent",
188 title: "g1t agents",
189 description: "Put g1t's agent to work and talk to it. One agent per issue; to do more at once, use more issues. Starting an agent uses the workspace's money.",
190 default_action: None,
191 actions: &[
192 a("delegate", Op::Delegate, "Open an issue and put an agent on it in one step"),
193 a("assign", Op::AssignIssue, "Put an agent on an existing issue"),
194 a("message", Op::MessageAgent, "Tell the agent on a pull request something, or ask another agent"),
195 a("answer", Op::AnswerMessage, "Answer a question or handoff sent to you"),
196 a("take_messages", Op::TakeMessages, "For a g1t agent: messages not seen yet"),
197 ],
198 },
199 Tool {
200 name: "plan",
201 title: "Plans",
202 description: "Turn an outcome into issues: an agent proposes them with what done means and their dependencies; nothing opens until you apply the plan.",
203 default_action: None,
204 actions: &[
205 a("create", Op::PlanWork, "Ask an agent for a plan; read it with get until ready"),
206 a("get", Op::GetPlan, "A plan and the issues it proposes"),
207 a("apply", Op::ApplyPlan, "Open its issues; with assign, agents start in dependency order"),
208 ],
209 },
210 Tool {
211 name: "memory",
212 title: "Memory",
213 description: "What the project and its workspace remember for the next agent: how to build, conventions, decisions, traps. Recall before you start; remember one short fact at a time, never a secret.",
214 default_action: None,
215 actions: &[
216 a("recall", Op::Recall, "Search memory, or list it all"),
217 a("remember", Op::Remember, "Save one fact"),
218 ],
219 },
220 Tool {
221 name: "workflow",
222 title: "Workflows",
223 description: "GitHub Actions workflows from .g1t/workflows: their runs, jobs and logs, and running, cancelling or rerunning them. Runs' artifacts: listing, a download link, deleting, and how long they are kept. Deployments wherever they run (reported from any CI, made by jobs with an `environment:`, or built on g1t.page), their statuses and environments, and reporting your own; environments' protection rules, approving or rejecting the jobs they hold, approving a pull request's run from outside, the token's default permissions and repository dispatch. Checks on commits: statuses, check runs (a g1t Actions job is one) and check suites, to read where a commit stands or report on it from CI or an integration. Also the self-hosted runners they run on: a workspace's (`workspace`) or a repository's own (`repo`), their groups, and where agent work runs.",
224 default_action: None,
225 actions: &[
226 a("list", Op::ListWorkflows, "Workflows on the default branch"),
227 a("list_runs", Op::ListWorkflowRuns, "Runs, newest first"),
228 a("get_run", Op::GetWorkflowRun, "One run with its jobs and steps; an earlier attempt with attempt"),
229 a("job_logs", Op::GetJobLogs, "A job's log after a sequence number"),
230 a("dispatch", Op::DispatchWorkflow, "Run a workflow_dispatch workflow"),
231 a("cancel", Op::CancelWorkflowRun, "Cancel a run, letting its jobs clean up; force stops them outright"),
232 a("rerun", Op::RerunWorkflowRun, "Run a finished run again: all, failed_only, or one job; debug for debug logging"),
233 a("update", Op::UpdateWorkflow, "Turn a workflow on or off"),
234 a("list_artifacts", Op::Artifacts(ArtifactsOp::ListArtifacts), "A repository's artifacts, newest first; or a run's with run_artifacts"),
235 a("run_artifacts", Op::Artifacts(ArtifactsOp::ListRunArtifacts), "One run's artifacts"),
236 a("get_artifact", Op::Artifacts(ArtifactsOp::GetArtifact), "One artifact: size, digest, expiry, run"),
237 a("download_artifact", Op::Artifacts(ArtifactsOp::DownloadArtifact), "A 10-minute link to an artifact's zip"),
238 a("delete_artifact", Op::Artifacts(ArtifactsOp::DeleteArtifact), "Delete an artifact before it expires"),
239 a("artifact_retention", Op::Artifacts(ArtifactsOp::GetArtifactRetention), "Days the repository keeps artifacts"),
240 a("set_artifact_retention", Op::Artifacts(ArtifactsOp::SetArtifactRetention), "Change the days the repository keeps artifacts"),
241 a("combined_status", Op::Checks(ChecksOp::GetCombinedStatus), "A commit's statuses and the state they add up to"),
242 a("list_statuses", Op::Checks(ChecksOp::ListCommitStatuses), "A commit's statuses, newest first"),
243 a("set_status", Op::Checks(ChecksOp::CreateCommitStatus), "Set a status on a commit"),
244 a("list_check_runs", Op::Checks(ChecksOp::ListCheckRunsForRef), "A commit's check runs, g1t Actions jobs included"),
245 a("get_check_run", Op::Checks(ChecksOp::GetCheckRun), "One check run with its report"),
246 a("check_run_annotations", Op::Checks(ChecksOp::ListCheckRunAnnotations), "What a check run says about lines of files"),
247 a("create_check_run", Op::Checks(ChecksOp::CreateCheckRun), "Report a check run on a commit"),
248 a("update_check_run", Op::Checks(ChecksOp::UpdateCheckRun), "Move a check run on, complete it, add annotations"),
249 a("rerequest_check_run", Op::Checks(ChecksOp::RerequestCheckRun), "Ask for a check run to run again"),
250 a("list_check_suites", Op::Checks(ChecksOp::ListCheckSuitesForRef), "A commit's check suites, one per reporter or workflow run"),
251 a("get_check_suite", Op::Checks(ChecksOp::GetCheckSuite), "One check suite"),
252 a("rerequest_check_suite", Op::Checks(ChecksOp::RerequestCheckSuite), "Ask for a check suite to run again"),
253 a("list_deployments", Op::Deployments(DeploymentsOp::ListDeployments), "Deployments wherever they run, newest first, filtered"),
254 a("get_deployment", Op::Deployments(DeploymentsOp::GetDeployment), "One deployment with every status it has had"),
255 a("create_deployment", Op::Deployments(DeploymentsOp::CreateDeployment), "Report a deployment of a ref to an environment"),
256 a("deployment_statuses", Op::Deployments(DeploymentsOp::ListDeploymentStatuses), "A deployment's statuses, newest first"),
257 a("create_deployment_status", Op::Deployments(DeploymentsOp::CreateDeploymentStatus), "Report where a deployment is: in_progress, success, failure"),
258 a("list_environments", Op::Deployments(DeploymentsOp::ListEnvironments), "Environments with their current and latest deployments"),
259 a("get_environment", Op::Deployments(DeploymentsOp::GetEnvironment), "One environment by name, with its protection rules"),
260 a("update_environment", Op::Protection(ProtectionOp::UpdateEnvironment), "Set an environment's reviewers, wait timer and branches"),
261 a("delete_environment", Op::Protection(ProtectionOp::DeleteEnvironment), "Remove an environment's protection rules"),
262 a("pending_deployments", Op::Protection(ProtectionOp::GetPendingDeployments), "The environments holding a run's jobs"),
263 a("review_deployments", Op::Protection(ProtectionOp::ReviewPendingDeployments), "Approve or reject a run's jobs for its environments"),
264 a("approve_run", Op::Protection(ProtectionOp::ApproveWorkflowRun), "Let a run of a pull request from outside start"),
265 a("get_permissions", Op::Protection(ProtectionOp::GetWorkflowPermissions), "What a job's token gets without `permissions:`"),
266 a("set_permissions", Op::Protection(ProtectionOp::SetWorkflowPermissions), "Set it: read or write"),
267 a("get_approval_policy", Op::Protection(ProtectionOp::GetForkPrApproval), "Which pull requests' runs wait for approval"),
268 a("set_approval_policy", Op::Protection(ProtectionOp::SetForkPrApproval), "Set which pull requests' runs wait for approval"),
269 a("get_access", Op::Protection(ProtectionOp::GetActionsAccess), "Which repositories may use this one's actions and workflows"),
270 a("set_access", Op::Protection(ProtectionOp::SetActionsAccess), "Let the workspace's private repositories use them, or not"),
271 a("repository_dispatch", Op::Protection(ProtectionOp::CreateRepositoryDispatch), "Start repository_dispatch workflows with an event"),
272 a("get_workspace_permissions", Op::Protection(ProtectionOp::GetWorkspaceWorkflowPermissions), "A workspace's default and maximum token permissions"),
273 a("set_workspace_permissions", Op::Protection(ProtectionOp::SetWorkspaceWorkflowPermissions), "Set them, and whether jobs may open pull requests"),
274 a("list_runners", Op::ListRunners, "Self-hosted runners, with status, labels and what each is doing"),
275 a("create_runner_token", Op::CreateRunnerRegistrationToken, "A one-hour token for g1t-runner register"),
276 a("remove_runner", Op::RemoveRunner, "Remove a self-hosted runner"),
277 a("list_runner_groups", Op::ListRunnerGroups, "A workspace's runner groups"),
278 a("create_runner_group", Op::CreateRunnerGroup, "Make a group, for some repositories"),
279 a("update_runner_group", Op::UpdateRunnerGroup, "Rename a group or change its repositories"),
280 a("delete_runner_group", Op::DeleteRunnerGroup, "Delete a group; its runners join the default"),
281 a("get_runner_settings", Op::GetRunnerSettings, "Where agent work runs; whether forks may use runners"),
282 a("update_runner_settings", Op::UpdateRunnerSettings, "Change them"),
283 ],
284 },
285 Tool {
286 name: "package",
287 title: "Packages",
288 description: "A workspace's packages in every registry (container images, npm, Cargo, Maven, NuGet, RubyGems, Composer): their versions and downloads, deleting and restoring them within 30 days, their visibility and repository, who has a role on them, and which repositories' workflows may use them (Manage Actions access). Name one by workspace, package_type and package_name.",
289 default_action: None,
290 actions: &[
291 a("list", Op::Packages(PackagesOp::ListPackages), "A workspace's packages; state deleted for restorable ones"),
292 a("get", Op::Packages(PackagesOp::GetPackage), "One package: address, visibility, repository, downloads"),
293 a("versions", Op::Packages(PackagesOp::ListVersions), "Its versions with tags and downloads; state deleted too"),
294 a("get_version", Op::Packages(PackagesOp::GetVersion), "One version by id, version, digest or tag"),
295 a("update", Op::Packages(PackagesOp::UpdatePackage), "Set visibility, or inherit_access for a linked one"),
296 a("link", Op::Packages(PackagesOp::LinkPackage), "Link it to a repository of its workspace"),
297 a("unlink", Op::Packages(PackagesOp::UnlinkPackage), "Unlink it: the workspace's, private"),
298 a("access", Op::Packages(PackagesOp::ListAccess), "People and teams with a role on it"),
299 a("set_access", Op::Packages(PackagesOp::SetAccess), "Give a person or team read, write or admin"),
300 a("remove_access", Op::Packages(PackagesOp::RemoveAccess), "Take a person's or team's role away"),
301 a("actions_access", Op::Packages(PackagesOp::ListActionsAccess), "Repositories whose workflows may use it"),
302 a("set_actions_access", Op::Packages(PackagesOp::SetActionsAccess), "Let a repository's workflows read or write it"),
303 a("remove_actions_access", Op::Packages(PackagesOp::RemoveActionsAccess), "Stop a repository's workflows using it"),
304 a("delete", Op::Packages(PackagesOp::DeletePackage), "Delete it; restorable for 30 days"),
305 a("restore", Op::Packages(PackagesOp::RestorePackage), "Restore a deleted package"),
306 a("delete_version", Op::Packages(PackagesOp::DeleteVersion), "Delete a version; restorable for 30 days"),
307 a("restore_version", Op::Packages(PackagesOp::RestoreVersion), "Restore a deleted version"),
308 ],
309 },
310 Tool {
311 name: "secret",
312 title: "Secrets and variables",
313 description: "A repository's or workspace's secrets and variables, read by workflows and deployments. Secret values are never returned.",
314 default_action: None,
315 actions: &[
316 a("list_secrets", Op::ListActionsSecrets, "Secrets, without values"),
317 a("set_secret", Op::SetActionsSecret, "Add or change a secret"),
318 a("delete_secret", Op::DeleteActionsSecret, "Remove a secret"),
319 a("list_variables", Op::ListActionsVariables, "Variables, with values"),
320 a("set_variable", Op::SetActionsVariable, "Add or change a variable"),
321 a("delete_variable", Op::DeleteActionsVariable, "Remove a variable"),
322 ],
323 },
324 Tool {
325 name: "webhook",
326 title: "Webhooks",
327 description: "HTTPS addresses sent signed events as they happen, for a repository or a whole workspace.",
328 default_action: None,
329 actions: &[
330 a("list", Op::ListWebhooks, "Webhooks, without secrets"),
331 a("create", Op::CreateWebhook, "Register one; a ping is sent"),
332 a("update", Op::UpdateWebhook, "Change address, events or active"),
333 a("delete", Op::DeleteWebhook, "Remove one"),
334 a("ping", Op::PingWebhook, "Send a ping"),
335 a("list_deliveries", Op::ListWebhookDeliveries, "Latest deliveries"),
336 a("redeliver", Op::RedeliverWebhook, "Send a delivery again"),
337 ],
338 },
339 Tool {
340 name: "access",
341 title: "Who has access",
342 description: "Who has access to a repository and with which role (read, triage, write, maintain, admin), outside collaborators, a workspace's base permission, and a repository's deploy keys.",
343 default_action: None,
344 actions: &[
345 a("list_collaborators", Op::ListCollaborators, "Everyone with a role, and pending invitations"),
346 a("get_permission", Op::GetCollaboratorPermission, "One person's role and capabilities"),
347 a("add_collaborator", Op::AddCollaborator, "Give someone a role, by username or email"),
348 a("update_collaborator", Op::UpdateCollaborator, "Change a direct role"),
349 a("remove_collaborator", Op::RemoveCollaborator, "Take away a direct role"),
350 a("list_invitations", Op::ListRepoInvitations, "Pending invitations to a repository"),
351 a("revoke_invitation", Op::RevokeRepoInvitation, "Withdraw one"),
352 a("set_base_permission", Op::SetBasePermission, "What every member gets on each repository"),
353 a("list_outside_collaborators", Op::ListOutsideCollaborators, "People with roles who are not members"),
354 a("list_deploy_keys", Op::DeployKeys(DeployKeysOp::ListDeployKeys), "SSH keys that reach this one repository"),
355 a("get_deploy_key", Op::DeployKeys(DeployKeysOp::GetDeployKey), "One deploy key, by id"),
356 a("add_deploy_key", Op::DeployKeys(DeployKeysOp::CreateDeployKey), "Add one; read-only unless read_only is false"),
357 a("remove_deploy_key", Op::DeployKeys(DeployKeysOp::DeleteDeployKey), "Delete one"),
358 ],
359 },
360 Tool {
361 name: "team",
362 title: "Teams",
363 description: "Teams: groups of a workspace's members, given roles on repositories together, mentioned as @workspace/team and asked to review together. Name one by `workspace` and its slug (`team`). Any member may create a team; the workspace's owners and the team's maintainers manage it. A secret team is seen only by its people and the owners.",
364 default_action: None,
365 actions: &[
366 a("list", Op::ListTeams, "A workspace's teams you can see"),
367 a("get", Op::GetTeam, "One team"),
368 a("create", Op::CreateTeam, "Create a team; you become its maintainer"),
369 a("update", Op::UpdateTeam, "Change its name, slug, description, visibility, parent or notifications"),
370 a("delete", Op::DeleteTeam, "Delete it; its child teams move up"),
371 a("list_members", Op::ListTeamMembers, "Its people and their roles, child teams' with include_child_teams"),
372 a("set_member", Op::SetTeamMember, "Add a member of the workspace, or change their role"),
373 a("remove_member", Op::RemoveTeamMember, "Take someone out of it"),
374 a("list_child_teams", Op::ListChildTeams, "The teams nested under it"),
375 a("list_repos", Op::ListTeamRepos, "The repositories it has a role on"),
376 a("set_repo", Op::SetTeamRepo, "Give it a role on a repository"),
377 a("remove_repo", Op::RemoveTeamRepo, "Take its role on a repository away"),
378 a("set_review_assignment", Op::SetTeamReviewAssignment, "Whom it picks when asked to review"),
379 a("list_user_teams", Op::ListUserTeams, "The teams someone is in"),
380 ],
381 },
382 Tool {
383 name: "workspace",
384 title: "Workspaces",
385 description: "Workspaces own repositories (g1t.sh/{workspace}/{repo}): create, update or delete one, invite members, connect integrations and model providers, set rulesets that hold across its repositories, read and change its projects (what each is, where it runs, its links), and keep your own pinned projects at the top of its sidebar.",
386 default_action: None,
387 actions: &[
388 a("get", Op::GetWorkspace, "A workspace's details and settings"),
389 a("create", Op::CreateWorkspace, "Create a workspace"),
390 a("delete", Op::DeleteWorkspace, "Delete a workspace and everything in it (support can restore it for 30 days)"),
391 a("update", Op::UpdateWorkspace, "Change its name, description, base permission, who may create teams, member privileges or the two-factor requirement"),
392 a("list_members", Op::ListMembers, "Its members, owners first, with their roles"),
393 a("update_member", Op::UpdateMember, "Make someone an owner or a member, billing manager or security manager"),
394 a("remove_member", Op::RemoveMember, "Remove someone from it"),
395 a("transfer_ownership", Op::TransferOwnership, "Hand it to another member: they become an owner, you a member"),
396 a("leave", Op::LeaveWorkspace, "Leave it yourself"),
397 a("list_invites", Op::ListWorkspaceInvites, "Its invites"),
398 a("invite_member", Op::InviteMember, "Invite someone by username or email address"),
399 a("revoke_invite", Op::RevokeWorkspaceInvite, "Revoke a pending invite"),
400 a("list_integrations", Op::ListIntegrations, "Model providers, alert sources, trackers"),
401 a("connect_integration", Op::ConnectIntegration, "Connect one"),
402 a("update_integration", Op::UpdateIntegration, "Change one: rotate its key, choose its AI Gateway models"),
403 a("disconnect_integration", Op::DisconnectIntegration, "Remove one"),
404 a("test_integration", Op::TestIntegration, "Check its credentials"),
405 a("get_model_routes", Op::GetModelRoutes, "Where each kind of work's model requests go"),
406 a("set_model_routes", Op::SetModelRoutes, "Replace them"),
407 a("list_projects", Op::ListProjects, "Its projects you can see: what each is, where it runs, its links"),
408 a("get_project", Op::GetProject, "One project"),
409 a("update_project", Op::UpdateProject, "Change a project's name, description, kind, where it runs or its links"),
410 a("list_pinned_projects", Op::ListPinnedProjects, "Your pinned projects in it, in your order"),
411 a("pin_project", Op::PinProject, "Pin a project, at a position or the end"),
412 a("unpin_project", Op::UnpinProject, "Unpin a project"),
413 a("reorder_pinned_projects", Op::ReorderPinnedProjects, "Put your pins in a new order"),
414 a("list_rulesets", Op::Rules(RulesOp::ListWorkspaceRulesets), "Its rulesets, which hold across its repositories"),
415 a("get_ruleset", Op::Rules(RulesOp::GetWorkspaceRuleset), "One of its rulesets"),
416 a("create_ruleset", Op::Rules(RulesOp::CreateWorkspaceRuleset), "Create a ruleset for some or all of its repositories"),
417 a("update_ruleset", Op::Rules(RulesOp::UpdateWorkspaceRuleset), "Change one of its rulesets"),
418 a("delete_ruleset", Op::Rules(RulesOp::DeleteWorkspaceRuleset), "Delete one of its rulesets"),
419 a("rule_evaluations", Op::Rules(RulesOp::ListWorkspaceRuleEvaluations), "How rules judged changes across its repositories"),
420 a("get_token_policy", Op::Tokens(TokenOp::GetTokenPolicy), "Its rules for personal access tokens"),
421 a("set_token_policy", Op::Tokens(TokenOp::SetTokenPolicy), "Change them: which tokens reach it, approval, lifetime"),
422 a("list_member_tokens", Op::Tokens(TokenOp::ListMemberTokens), "Members' personal access tokens that reach it"),
423 a("list_token_requests", Op::Tokens(TokenOp::ListTokenRequests), "Tokens waiting for approval"),
424 a("review_token_request", Op::Tokens(TokenOp::ReviewTokenRequest), "Approve or deny one"),
425 a("revoke_member_token", Op::Tokens(TokenOp::RevokeMemberToken), "Revoke a member's token in it"),
426 ],
427 },
428 Tool {
429 name: "billing",
430 title: "Billing",
431 description: "A workspace's billing: its usage by product, project and day, its budget (the monthly spend limit, alerts and whether usage pauses at it), its AI credit, its invoices, and its AI Gateway requests. Amounts are whole millionths of a dollar (`_micros`), or cents (`_cents`) where named. Members read it; changing the budget and buying credit are for owners, as people, and never for g1t's agents.",
432 default_action: Some("usage"),
433 actions: &[
434 a("usage", Op::GetUsage, "Usage over a range of days, by product, meter, project and day, and what paid for it"),
435 a("budget", Op::GetBudget, "The monthly spend limit, what was spent, alerts and whether usage pauses at the limit"),
436 a("set_budget", Op::SetBudget, "Change the spend limit, alerts, pausing or the alert webhook"),
437 a("ai_credit", Op::GetAiCredit, "AI credit left, its grants, auto-reload and how to buy more"),
438 a("buy_ai_credit", Op::BuyAiCredit, "A payment page to buy AI credit, for a person to open"),
439 a("invoices", Op::ListInvoices, "Every invoice, the itemised usage invoices, and the next one so far"),
440 a("billing_details", Op::GetBillingDetails, "Who invoices are made out to and the payment method on file"),
441 a("gateway_requests", Op::ListGatewayRequests, "Recent AI Gateway requests: model, tokens, cost, status and token"),
442 ],
443 },
444 Tool {
445 name: "security",
446 title: "Security",
447 description: "A repository's security: secret scanning alerts and push protection bypasses, custom secret patterns, code scanning alerts and SARIF uploads, vulnerability alerts, the dependency graph and its SBOM, dependency review, settings, and a workspace's overview. Fix an alert with g1t. Findings are shown to those who can change the code only. Give `repo` (owner/name), or `workspace` for lists across one.",
448 default_action: Some("secret_alerts"),
449 actions: &[
450 a("secret_alerts", Op::Security(SecurityOp::ListSecretAlerts), "Secret scanning alerts; by state, secret_type, validity, bypassed"),
451 a("secret_alert", Op::Security(SecurityOp::GetSecretAlert), "One secret alert, with where it was found and its bypass requests"),
452 a("update_secret_alert", Op::Security(SecurityOp::UpdateSecretAlert), "Dismiss a secret alert with a reason, or reopen it"),
453 a("secret_locations", Op::Security(SecurityOp::ListSecretLocations), "Every file, line and commit a secret is in"),
454 a("bypass", Op::Security(SecurityOp::BypassPushProtection), "Push past push protection with a reason, or ask to"),
455 a("check_validity", Op::Security(SecurityOp::CheckSecretValidity), "Ask a secret's issuer whether it still works"),
456 a("bypass_requests", Op::Security(SecurityOp::ListBypassRequests), "A workspace's push protection bypass requests"),
457 a("review_bypass", Op::Security(SecurityOp::ReviewBypassRequest), "Approve, deny or cancel a bypass request"),
458 a("patterns", Op::Security(SecurityOp::ListCustomPatterns), "Custom secret patterns of a repository or workspace"),
459 a("create_pattern", Op::Security(SecurityOp::CreateCustomPattern), "Create a custom secret pattern, as a draft or published"),
460 a("update_pattern", Op::Security(SecurityOp::UpdateCustomPattern), "Change, publish or unpublish a custom pattern"),
461 a("delete_pattern", Op::Security(SecurityOp::DeleteCustomPattern), "Delete a custom pattern"),
462 a("dry_run_pattern", Op::Security(SecurityOp::DryRunCustomPattern), "Run a pattern over the default branch without saving it"),
463 a("code_alerts", Op::Security(SecurityOp::ListCodeAlerts), "Code scanning alerts; by state, severity, tool, rule_id"),
464 a("code_alert", Op::Security(SecurityOp::GetCodeAlert), "One code scanning alert by number"),
465 a("update_code_alert", Op::Security(SecurityOp::UpdateCodeAlert), "Dismiss a code scanning alert with a reason, or reopen it"),
466 a("analyses", Op::Security(SecurityOp::ListAnalyses), "Code scanning analyses, newest first"),
467 a("upload_sarif", Op::Security(SecurityOp::UploadSarif), "Upload a SARIF file, gzipped and base64-encoded"),
468 a("sarif_upload", Op::Security(SecurityOp::GetSarifUpload), "Whether a SARIF upload was read, and its analyses"),
469 a("vulnerability_alerts", Op::Security(SecurityOp::ListVulnerabilityAlerts), "Vulnerable dependencies; by state, severity, ecosystem, package"),
470 a("vulnerability_alert", Op::Security(SecurityOp::GetVulnerabilityAlert), "One vulnerability alert"),
471 a("update_vulnerability_alert", Op::Security(SecurityOp::UpdateVulnerabilityAlert), "Dismiss a vulnerability alert with a reason, or reopen it"),
472 a("fix", Op::Security(SecurityOp::FixAlert), "Put g1t on an issue to fix an alert"),
473 a("dependency_graph", Op::Security(SecurityOp::GetDependencyGraph), "Every package the lockfiles resolve, direct or transitive"),
474 a("sbom", Op::Security(SecurityOp::GetSbom), "The dependency graph as an SPDX 2.3 document"),
475 a("compare_dependencies", Op::Security(SecurityOp::CompareDependencies), "What changes in dependencies between base...head"),
476 a("settings", Op::Security(SecurityOp::GetSettings), "A repository's security settings"),
477 a("update_settings", Op::Security(SecurityOp::UpdateSettings), "Change when checks fail and dependency review's policy"),
478 a("workspace_settings", Op::Security(SecurityOp::GetWorkspaceSettings), "A workspace's delegated bypass and validity checks"),
479 a("update_workspace_settings", Op::Security(SecurityOp::UpdateWorkspaceSettings), "Turn delegated bypass or validity checks on or off"),
480 a("overview", Op::Security(SecurityOp::GetOverview), "A workspace's alerts, trends and coverage"),
481 ],
482 },
483 Tool {
484 name: "notifications",
485 title: "Notifications",
486 description: "Your inbox: what needs you, and what you follow. One thread per issue, pull request, workflow or deployment, with why you were told (`reason`): an agent waiting on you, a review asked of you, an assignment, a mention, your work's checks, or what you subscribe to and watch. Mark threads read or done once handled, and choose what you hear of with subscribe, unsubscribe and watch. Your own: a personal token.",
487 default_action: Some("list"),
488 actions: &[
489 a("list", Op::ListNotifications, "Unread threads, latest first; all, a view, a reason, a repository"),
490 a("get", Op::GetNotificationThread, "One thread with its recent activity and your subscription"),
491 a("mark_read", Op::MarkThreadRead, "Mark a thread read, or unread"),
492 a("mark_all_read", Op::MarkNotificationsRead, "Mark everything read up to a time, or one repository's"),
493 a("done", Op::MarkThreadDone, "Mark a thread done; new activity brings it back"),
494 a("save", Op::SaveThread, "Save a thread, or unsave it"),
495 a("snooze", Op::SnoozeThread, "Snooze a thread until a time, or bring it back"),
496 a("subscription", Op::GetThreadSubscription, "Your subscription to an issue or pull request"),
497 a("subscribe", Op::SetThreadSubscription, "Subscribe to an issue or pull request, or ignore it"),
498 a("unsubscribe", Op::DeleteThreadSubscription, "Unsubscribe until you comment or are mentioned"),
499 a("watching", Op::GetRepoSubscription, "How you watch a repository"),
500 a("watch", Op::SetRepoSubscription, "Watch a repository: participating, all, ignore or custom"),
501 a("unwatch", Op::DeleteRepoSubscription, "Stop watching a repository"),
502 a("watched", Op::ListWatchedRepos, "Repositories you watch other than the default way"),
503 ],
504 },
505 Tool {
506 name: "account",
507 title: "Your account",
508 description: "Who this token acts as and its workspaces (`whoami`), your email addresses, your invites, and invitations to workspaces and repositories waiting for you.",
509 default_action: Some("whoami"),
510 actions: &[
511 a("whoami", Op::Whoami, "Who the token acts as, and its workspaces"),
512 a("list_emails", Op::ListEmails, "Your addresses"),
513 a("add_email", Op::AddEmail, "Add an address"),
514 a("confirm_email", Op::ConfirmEmail, "Confirm an address with the code from its email"),
515 a("remove_email", Op::RemoveEmail, "Remove an address"),
516 a("update_email_settings", Op::UpdateEmailSettings, "Primary, backup and privacy"),
517 a("list_invites", Op::ListInvites, "Your invites to g1t"),
518 a("create_invite", Op::CreateInvite, "Make an invite"),
519 a("revoke_invite", Op::RevokeInvite, "Revoke one"),
520 a("list_workspace_invitations", Op::ListInvitations, "Invitations to workspaces for you"),
521 a("accept_workspace_invitation", Op::AcceptInvitation, "Accept one and join"),
522 a("decline_workspace_invitation", Op::DeclineInvitation, "Decline one"),
523 a("list_repository_invitations", Op::ListMyRepoInvitations, "Invitations to repositories for you"),
524 a("accept_repository_invitation", Op::AcceptRepoInvitation, "Accept one"),
525 a("decline_repository_invitation", Op::DeclineRepoInvitation, "Decline one"),
526 ],
527 },
528];
529
530/// Operations that cannot be undone, or reach beyond g1t's own records:
531/// clients ask before running a tool that has any of them.
532fn destructive(op: Op) -> bool {
533 matches!(
534 op,
535 Op::Security(SecurityOp::DeleteCustomPattern | SecurityOp::BypassPushProtection)
536 | Op::Rules(RulesOp::DeleteRepoRuleset | RulesOp::DeleteWorkspaceRuleset)
537 | Op::DeleteWorkspace
538 | Op::UpdateWorkspace
539 | Op::Tokens(TokenOp::RevokeMemberToken | TokenOp::SetTokenPolicy)
540 | Op::RemoveMember
541 | Op::TransferOwnership
542 | Op::LeaveWorkspace
543 | Op::DeleteRepo
544 | Op::PurgeRepo
545 | Op::TransferRepo
546 | Op::SetRepoVisibility
547 | Op::RemoveEmail
548 | Op::RemoveCollaborator
549 | Op::DisconnectIntegration
550 | Op::UpdateIntegration
551 | Op::DeleteWebhook
552 | Op::DeleteActionsSecret
553 | Op::DeleteActionsVariable
554 | Op::SetActionsSecret
555 | Op::SetActionsVariable
556 | Op::SetModelRoutes
557 | Op::SetBasePermission
558 | Op::DeleteTeam
559 | Op::RemoveTeamRepo
560 | Op::MergePullRequest
561 | Op::RemoveRunner
562 | Op::DeleteRunnerGroup
563 | Op::UpdateRunnerSettings
564 )
565}
566
567/// Whether an operation only reads.
568pub fn reads_only(op: Op) -> bool {
569 NO_SCOPE.contains(&op.name())
570 || scope_for(op.name()).is_some_and(|scope| scope.level() == Level::Read)
571}
572
573/// What decides which actions a caller sees.
574pub enum Gate<'a> {
575 /// No limit beyond the person's own role.
576 Everything,
577 /// A g1t agent's token: the operations its run lists.
578 Agent(&'a AgentScope),
579 /// An access token with scopes.
580 Token(&'a TokenAccess),
581}
582
583impl Gate<'_> {
584 pub fn allows(&self, op: Op) -> bool {
585 match self {
586 Gate::Everything => true,
587 Gate::Agent(scope) => op.allowed_by(scope) && !NEVER.contains(&op.name()),
588 Gate::Token(access) => {
589 if NO_SCOPE.contains(&op.name()) {
590 return true;
591 }
592 match scope_for(op.name()) {
593 Some(scope) => access.allows(scope),
594 None => access.scopes.is_none(),
595 }
596 }
597 }
598 }
599}
600
601impl Tool {
602 pub fn by_name(name: &str) -> Option<&'static Tool> {
603 TOOLS.iter().find(|tool| tool.name == name)
604 }
605
606 pub fn action(&self, name: &str) -> Option<&'static Action> {
607 // The tools are 'static; find through TOOLS to keep the lifetime.
608 TOOLS
609 .iter()
610 .find(|tool| tool.name == self.name)
611 .and_then(|tool| tool.actions.iter().find(|action| action.name == name))
612 }
613
614 pub fn visible(&self, gate: &Gate) -> Vec<&'static Action> {
615 TOOLS
616 .iter()
617 .find(|tool| tool.name == self.name)
618 .map(|tool| tool.actions.iter().filter(|action| gate.allows(action.op)).collect())
619 .unwrap_or_default()
620 }
621
622 /// The flat input schema of the actions given.
623 pub fn input_schema(&self, actions: &[&Action]) -> Value {
624 let mut properties = Map::new();
625 let lines: Vec<String> = actions
626 .iter()
627 .map(|action| {
628 let required: Vec<String> = action.op.required();
629 if required.is_empty() {
630 format!("{}: {}.", action.name, action.summary)
631 } else {
632 format!("{} ({}): {}.", action.name, required.join(", "), action.summary)
633 }
634 })
635 .collect();
636 let mut action_schema = json!({
637 "type": "string",
638 "enum": actions.iter().map(|action| action.name).collect::<Vec<_>>(),
639 "description": lines.join("\n"),
640 });
641 if let Some(default) = self.default_action.filter(|name| actions.iter().any(|action| action.name == *name)) {
642 action_schema["default"] = json!(default);
643 }
644 properties.insert("action".to_owned(), action_schema);
645 for action in actions {
646 for (name, schema) in action.op.properties() {
647 merge_property(&mut properties, name, schema);
648 }
649 }
650 let mut required = vec![];
651 if self.default_action.is_none() {
652 required.push("action");
653 }
654 let mut schema = json!({ "type": "object", "properties": properties });
655 if !required.is_empty() {
656 schema["required"] = json!(required);
657 }
658 schema
659 }
660
661 /// The input schema keyed by action: one `oneOf` branch per action,
662 /// each with its own fields and the ones it needs.
663 pub fn discriminated(&self, actions: &[&Action]) -> Value {
664 let branches: Vec<Value> = actions
665 .iter()
666 .map(|action| {
667 let mut properties = Map::new();
668 properties.insert("action".to_owned(), json!({ "const": action.name }));
669 properties.extend(action.op.properties());
670 let mut required = vec![Value::String("action".to_owned())];
671 // The default action may leave `action` out.
672 if self.default_action == Some(action.name) {
673 required.clear();
674 }
675 required.extend(action.op.required().into_iter().map(Value::String));
676 json!({
677 "title": action.name,
678 "description": action.summary,
679 "type": "object",
680 "properties": properties,
681 "required": required,
682 })
683 })
684 .collect();
685 json!({ "type": "object", "oneOf": branches })
686 }
687
688 /// MCP's hints about the actions given: whether the tool only reads,
689 /// whether it can destroy something, and whether calling it twice is
690 /// the same as once.
691 pub fn annotations(&self, actions: &[&Action]) -> Value {
692 let read_only = actions.iter().all(|action| reads_only(action.op));
693 json!({
694 "title": self.title,
695 "readOnlyHint": read_only,
696 "destructiveHint": !read_only && actions.iter().any(|action| destructive(action.op)),
697 "idempotentHint": read_only,
698 "openWorldHint": false,
699 })
700 }
701
702 /// The tool as `tools/list` gives it, for a caller behind `gate`, or
703 /// `None` when it may use none of its actions.
704 pub fn listed(&self, gate: &Gate) -> Option<Value> {
705 let actions = self.visible(gate);
706 if actions.is_empty() {
707 return None;
708 }
709 Some(json!({
710 "name": self.name,
711 "title": self.title,
712 "description": self.description,
713 "inputSchema": self.input_schema(&actions),
714 "annotations": self.annotations(&actions),
715 }))
716 }
717}
718
719/// Adds a property to a tool's flat schema. The first action to use a name
720/// describes it; a later one with other allowed values adds them.
721fn merge_property(properties: &mut Map<String, Value>, name: String, schema: Value) {
722 match properties.get_mut(&name) {
723 None => {
724 properties.insert(name, schema);
725 }
726 Some(existing) => {
727 if let (Some(Value::Array(had)), Some(Value::Array(more))) =
728 (existing.get("enum").cloned(), schema.get("enum"))
729 {
730 let mut merged = had;
731 for value in more {
732 if !merged.contains(value) {
733 merged.push(value.clone());
734 }
735 }
736 existing["enum"] = Value::Array(merged);
737 }
738 // Different kinds of value under one name: say less, accept both.
739 if existing.get("type") != schema.get("type")
740 && let Some(fields) = existing.as_object_mut()
741 {
742 fields.remove("type");
743 fields.remove("items");
744 }
745 }
746 }
747}
748
749/// What a call to a tool runs: the operation its action names, or why not.
750pub fn resolve(tool: &Tool, arguments: &Value) -> Result<Op, String> {
751 let names = || {
752 tool.actions
753 .iter()
754 .map(|action| action.name)
755 .collect::<Vec<_>>()
756 .join(", ")
757 };
758 let Some(name) = arguments["action"].as_str().or(tool.default_action) else {
759 return Err(format!("Give an action: one of {}.", names()));
760 };
761 let Some(action) = tool.action(name) else {
762 return Err(format!("{} has no action {name}. Its actions: {}.", tool.name, names()));
763 };
764 let missing: Vec<String> = action
765 .op
766 .required()
767 .into_iter()
768 .filter(|field| arguments.get(field).is_none_or(Value::is_null))
769 .collect();
770 if !missing.is_empty() {
771 return Err(format!("{}.{name} needs {}.", tool.name, missing.join(", ")));
772 }
773 Ok(action.op)
774}
775
776#[cfg(test)]
777mod tests {
778 use super::*;
779 use g1t_contracts::scopes::{Preset, Scope};
780
781 fn listed(gate: &Gate) -> Vec<Value> {
782 TOOLS.iter().filter_map(|tool| tool.listed(gate)).collect()
783 }
784
785 fn token(scopes: Option<Vec<Scope>>) -> TokenAccess {
786 TokenAccess {
787 token_id: "tok_1".to_owned(),
788 scopes: scopes.map(|scopes| scopes.iter().map(|scope| scope.as_str().to_owned()).collect()),
789 legacy: false,
790 name: None,
791 ..TokenAccess::default()
792 }
793 }
794
795 #[test]
796 fn every_operation_is_exactly_one_action_of_one_tool() {
797 for op in Op::ALL {
798 let count = TOOLS
799 .iter()
800 .flat_map(|tool| tool.actions.iter())
801 .filter(|action| action.op == op)
802 .count();
803 assert_eq!(count, 1, "{} is {count} actions", op.name());
804 }
805 for tool in TOOLS {
806 let mut names = std::collections::HashSet::new();
807 for action in tool.actions {
808 assert!(names.insert(action.name), "{}.{} twice", tool.name, action.name);
809 }
810 if let Some(default) = tool.default_action {
811 assert!(tool.action(default).is_some(), "{}", tool.name);
812 }
813 }
814 assert!(TOOLS.len() <= 18, "{} tools", TOOLS.len());
815 }
816
817 #[test]
818 fn every_operation_needs_exactly_one_scope_or_none() {
819 use g1t_contracts::scopes::OPERATIONS;
820 for op in Op::ALL {
821 let mapped = OPERATIONS.iter().filter(|(name, _)| *name == op.name()).count();
822 let free = NO_SCOPE.contains(&op.name());
823 assert_eq!(mapped + usize::from(free), 1, "{}", op.name());
824 }
825 for (name, _) in OPERATIONS {
826 assert!(Op::by_name(name).is_some(), "{name} is not an operation");
827 }
828 }
829
830 #[test]
831 fn each_tool_schema_is_valid_with_one_branch_per_action() {
832 for tool in TOOLS {
833 let actions: Vec<&Action> = tool.actions.iter().collect();
834 let flat = tool.input_schema(&actions);
835 assert_eq!(flat["type"], "object");
836 assert!(flat.get("oneOf").is_none(), "no oneOf at the top level");
837 let listed: Vec<&str> = flat["properties"]["action"]["enum"]
838 .as_array()
839 .unwrap()
840 .iter()
841 .map(|name| name.as_str().unwrap())
842 .collect();
843 assert_eq!(listed, tool.actions.iter().map(|action| action.name).collect::<Vec<_>>());
844 for action in tool.actions {
845 for field in action.op.required() {
846 assert!(flat["properties"].get(&field).is_some(), "{}.{}: {field}", tool.name, action.name);
847 }
848 }
849 let keyed = tool.discriminated(&actions);
850 let branches = keyed["oneOf"].as_array().unwrap();
851 assert_eq!(branches.len(), tool.actions.len());
852 for (branch, action) in branches.iter().zip(tool.actions) {
853 assert_eq!(branch["properties"]["action"]["const"], action.name);
854 for field in branch["required"].as_array().unwrap() {
855 assert!(branch["properties"].get(field.as_str().unwrap()).is_some(), "{}.{}: {field}", tool.name, action.name);
856 }
857 }
858 // A well-formed JSON Schema object throughout.
859 let text = serde_json::to_string(&flat).unwrap();
860 assert!(serde_json::from_str::<Value>(&text).is_ok());
861 }
862 }
863
864 #[test]
865 fn a_read_only_token_sees_read_actions_only() {
866 let access = token(Preset::ReadOnly.scopes());
867 let gate = Gate::Token(&access);
868 for tool in TOOLS {
869 for action in tool.visible(&gate) {
870 assert!(reads_only(action.op), "{}.{}", tool.name, action.name);
871 }
872 }
873 let tools = listed(&gate);
874 for tool in &tools {
875 assert_eq!(tool["annotations"]["readOnlyHint"], true, "{}", tool["name"]);
876 assert_eq!(tool["annotations"]["destructiveHint"], false);
877 }
878 let issue = tools.iter().find(|tool| tool["name"] == "issue").unwrap();
879 assert_eq!(issue["inputSchema"]["properties"]["action"]["enum"], json!(["list", "get", "labels"]));
880 // Nothing of the agent tool is a read.
881 assert!(!tools.iter().any(|tool| tool["name"] == "agent"));
882 }
883
884 #[test]
885 fn a_narrow_token_sees_only_its_tools() {
886 let access = token(Some(vec![Scope::IssuesWrite]));
887 let names: Vec<Value> = listed(&Gate::Token(&access)).into_iter().map(|tool| tool["name"].clone()).collect();
888 // Labels and milestones are the repository's, managed with issues:write.
889 assert_eq!(names, vec![json!("repository"), json!("issue"), json!("plan"), json!("account")]);
890 // Notifications are a resource of their own: reading them lists
891 // only what reads.
892 let reader = token(Some(vec![Scope::NotificationsRead]));
893 let tools = listed(&Gate::Token(&reader));
894 let notifications = tools.iter().find(|tool| tool["name"] == "notifications").unwrap();
895 assert_eq!(
896 notifications["inputSchema"]["properties"]["action"]["enum"],
897 json!(["list", "get", "subscription", "watching", "watched"])
898 );
899 assert_eq!(notifications["annotations"]["readOnlyHint"], true);
900 let full = token(None);
901 assert_eq!(listed(&Gate::Token(&full)).len(), TOOLS.len());
902 assert_eq!(listed(&Gate::Everything).len(), TOOLS.len());
903 }
904
905 #[test]
906 fn a_tool_that_can_destroy_says_so() {
907 let tools = listed(&Gate::Everything);
908 let repository = tools.iter().find(|tool| tool["name"] == "repository").unwrap();
909 assert_eq!(repository["annotations"]["destructiveHint"], true);
910 assert_eq!(repository["annotations"]["readOnlyHint"], false);
911 let memory = tools.iter().find(|tool| tool["name"] == "memory").unwrap();
912 assert_eq!(memory["annotations"]["destructiveHint"], false);
913 }
914
915 #[test]
916 fn calls_resolve_to_their_operation_or_say_what_is_missing() {
917 let issue = Tool::by_name("issue").unwrap();
918 assert_eq!(resolve(issue, &json!({ "action": "get", "repo": "a/b", "number": 1 })), Ok(Op::GetIssue));
919 assert_eq!(resolve(issue, &json!({ "action": "get", "repo": "a/b" })), Err("issue.get needs number.".to_owned()));
920 assert!(resolve(issue, &json!({})).unwrap_err().starts_with("Give an action"));
921 assert!(resolve(issue, &json!({ "action": "explode" })).unwrap_err().contains("no action explode"));
922 let search = Tool::by_name("search").unwrap();
923 assert_eq!(resolve(search, &json!({ "query": "x" })), Ok(Op::Search));
924 let account = Tool::by_name("account").unwrap();
925 assert_eq!(resolve(account, &json!({})), Ok(Op::Whoami));
926 }
927
928 #[test]
929 fn teams_are_one_tool_and_a_workspace_reader_sees_only_its_reads() {
930 let team = Tool::by_name("team").unwrap();
931 let names: Vec<&str> = team.actions.iter().map(|action| action.name).collect();
932 assert_eq!(
933 names,
934 [
935 "list",
936 "get",
937 "create",
938 "update",
939 "delete",
940 "list_members",
941 "set_member",
942 "remove_member",
943 "list_child_teams",
944 "list_repos",
945 "set_repo",
946 "remove_repo",
947 "set_review_assignment",
948 "list_user_teams",
949 ]
950 );
951 let reader = token(Some(vec![Scope::WorkspaceRead]));
952 let tools = listed(&Gate::Token(&reader));
953 let listed_team = tools.iter().find(|tool| tool["name"] == "team").unwrap();
954 assert_eq!(
955 listed_team["inputSchema"]["properties"]["action"]["enum"],
956 json!(["list", "get", "list_members", "list_child_teams", "list_repos", "list_user_teams"])
957 );
958 assert_eq!(listed_team["annotations"]["readOnlyHint"], true);
959 // A team's role on a repository is who has access.
960 let admin = token(Some(vec![Scope::WorkspaceAdmin]));
961 let tools = listed(&Gate::Token(&admin));
962 let listed_team = tools.iter().find(|tool| tool["name"] == "team").unwrap();
963 let actions = listed_team["inputSchema"]["properties"]["action"]["enum"].as_array().unwrap();
964 assert!(actions.contains(&json!("set_review_assignment")) && !actions.contains(&json!("set_repo")));
965 let access = token(Some(vec![Scope::AccessAdmin]));
966 let tools = listed(&Gate::Token(&access));
967 let listed_team = tools.iter().find(|tool| tool["name"] == "team").unwrap();
968 assert_eq!(listed_team["inputSchema"]["properties"]["action"]["enum"], json!(["set_repo", "remove_repo"]));
969 // Both kinds of role a schema names are offered.
970 let roles = &listed(&Gate::Everything).into_iter().find(|tool| tool["name"] == "team").unwrap()["inputSchema"]
971 ["properties"]["role"]["enum"];
972 for role in ["member", "maintainer", "read", "admin"] {
973 assert!(roles.as_array().unwrap().contains(&json!(role)), "{role}");
974 }
975 assert_eq!(
976 resolve(team, &json!({ "action": "set_repo", "workspace": "acme", "team": "backend", "repo": "rocket" })),
977 Err("team.set_repo needs role.".to_owned())
978 );
979 }
980
981 #[test]
982 fn reviewers_and_code_owners_are_actions_of_their_tools() {
983 let pull = Tool::by_name("pull_request").unwrap();
984 assert_eq!(
985 resolve(pull, &json!({ "action": "request_reviewers", "repo": "a/b", "number": 1, "team_reviewers": ["backend"] })),
986 Ok(Op::RequestReviewers)
987 );
988 assert_eq!(pull.action("remove_requested_reviewers").map(|action| action.op), Some(Op::RemoveRequestedReviewers));
989 let repository = Tool::by_name("repository").unwrap();
990 assert_eq!(resolve(repository, &json!({ "action": "codeowners", "repo": "a/b" })), Ok(Op::GetCodeownersErrors));
991 assert!(reads_only(Op::GetCodeownersErrors));
992 assert!(!reads_only(Op::RequestReviewers));
993 }
994
995 /// How much smaller `tools/list` is than one tool per operation. Run
996 /// with `--nocapture` to see the numbers.
997 #[test]
998 fn the_tool_list_is_much_smaller_than_one_tool_per_operation() {
999 let before: Vec<Value> = Op::ALL
1000 .into_iter()
1001 .map(|op| json!({ "name": op.name(), "description": op.description(), "inputSchema": op.input() }))
1002 .collect();
1003 let after = listed(&Gate::Everything);
1004 let before_bytes = serde_json::to_string(&json!({ "tools": before })).unwrap().len();
1005 let after_bytes = serde_json::to_string(&json!({ "tools": after })).unwrap().len();
1006 let agent = token(Preset::Agent.scopes());
1007 let agent_bytes = serde_json::to_string(&json!({ "tools": listed(&Gate::Token(&agent)) })).unwrap().len();
1008 let read = token(Preset::ReadOnly.scopes());
1009 let read_bytes = serde_json::to_string(&json!({ "tools": listed(&Gate::Token(&read)) })).unwrap().len();
1010 println!(
1011 "tools/list: before {} tools, {before_bytes} bytes (~{} tokens); after {} tools, {after_bytes} bytes (~{} tokens); agent preset {agent_bytes} bytes (~{} tokens); read only {read_bytes} bytes (~{} tokens)",
1012 before.len(),
1013 before_bytes / 4,
1014 after.len(),
1015 after_bytes / 4,
1016 agent_bytes / 4,
1017 read_bytes / 4,
1018 );
1019 assert!(after_bytes * 2 < before_bytes, "{after_bytes} vs {before_bytes}");
1020 }
1021}