Helm — 109 Operations for AI Agents

This page is the canonical reference an AI coding agent uses to refactor, query, and analyze Helm code through the act MCP server. 109 operations available: 35 refactor, 18 query, 42 analysis, 14 verification. Each operation is callable from Claude Code, Cursor, Codex, OpenCode, or any MCP-compatible agent host. Click any operation for a stable anchor link suitable for citation.

18Query

35Refactor

42Analysis

14Verify

Worked Helm examples

act101 edits Helm chart templates by parsing the Go template actions inside .tpl and .yaml files, so an edit targets a specific {{ if }}/{{ with }} block or .Values reference rather than a raw line offset. It can wrap an existing block of one or more lines in an {{- if <condition> }} guard, closing it with a matching {{- end }} immediately after the wrapped content. It can also rewrite an {{- with .Values.x }} block into the equivalent {{- if .Values.x }} form, replacing the shorthand . inside the body with the full .Values.x path. And it can rename a .Values key, replacing every .Values.old_key reference in the file with .Values.new_key. Each example below is the verbatim output of the command shown, run against the file shown.

Wrap a block in a values-gated if condition

pvc.tpl lists the size, storage class, and access mode for a persistent volume claim, unconditionally rendered regardless of whether persistence is enabled.

$ act refactor-lang add_if_condition --file pvc.tpl --params '{"condition":".Values.persistence.enabled","line":1,"column":1,"end_line":3}'

Before

size: 10Gi
storageClass: default
accessMode: ReadWriteOnce

After

{{- if .Values.persistence.enabled }}
size: 10Gi
storageClass: default
accessMode: ReadWriteOnce
{{- end }}

The three lines are wrapped in {{- if .Values.persistence.enabled }} and a closing {{- end }}, so the block renders only when persistence is enabled.

Convert a with block into an if block

serviceaccount.tpl renders the image unconditionally, then emits a name line only inside an {{- with .Values.serviceAccount }} block that reads it back through the shorthand ..

$ act refactor-lang convert_with_to_if --file serviceaccount.tpl --params '{"line":2,"column":1}'

Before

image: {{ .Values.image }}
{{- with .Values.serviceAccount }}
name: {{ . }}
{{- end }}
pullPolicy: IfNotPresent

After

image: {{ .Values.image }}
{{- if .Values.serviceAccount }}
name: {{ .Values.serviceAccount }}
{{- end }}
pullPolicy: IfNotPresent

{{- with .Values.serviceAccount }} becomes {{- if .Values.serviceAccount }}, and the . inside the body becomes the explicit .Values.serviceAccount; image and pullPolicy are unchanged.

Rename a Values key throughout a template

image.tpl reads .Values.image twice — once directly and once with a default "latest" fallback — and also reads the unrelated .Values.pullPolicy.

$ act refactor-lang rename_value --file image.tpl --params '{"old_key":"image","new_key":"containerImage","line":1,"column":1}'

Before

image: {{ .Values.image }}
tag: {{ .Values.image | default "latest" }}
pullPolicy: {{ .Values.pullPolicy }}

After

image: {{ .Values.containerImage }}
tag: {{ .Values.containerImage | default "latest" }}
pullPolicy: {{ .Values.pullPolicy }}

Both .Values.image references become .Values.containerImage, including the one piped through default "latest"; .Values.pullPolicy is untouched.

Query

18 query tools, the same on every supported language. Descriptions live in the shared reference: /docs/query-tools.

callers control_flow data_flow definition diagnostics effect_closure effect_summary fix_auto get_type graph import_organize interface mutations references repo_outline skeleton symbols symbols_batch

Refactor

Operation	Description
`add-if-condition`	wrap a block in {{- if .Values.enabled }} guard
`add-value-default`	wrap a .Values reference with \| default <value>
`convert-from-named-template`	inline a named template at its include site and remove the define block
`convert-if-to-with`	convert {{- if .Values.x }}{{ .Values.x }}{{- end }} to with block
`convert-to-named-template`	wrap inline template content into a define/include pair
`convert-with-to-if`	convert {{- with .Values.x }}{{ . }}{{- end }} to explicit if block
`extract-helper`	extract an inline expression into a named define helper template
`extract-partial`	extract a repeated block into a named partial template
`extract-values-reference`	replace a hardcoded literal with a .Values reference
`extract_function`	Extract a code selection into a new function — automatically infers parameters, return types, and inserts the call site. Use instead of manually cutting/pasting code. Works without LSP; LSP improves type inference. Params: file (string), new_name (string), start_line (u32), start_column (u32), end_line (u32), end_column (u32) [, preview (bool), receipt (bool)]
`extract_variable`	Extract an expression into a named variable — inserts the declaration and replaces the expression with the variable name. Works without LSP. Params: file (string), new_name (string), start_line (u32), start_column (u32), end_line (u32), end_column (u32) [, preview (bool)]
`gen-chart-scaffold`	generate Chart.yaml, values.yaml, and templates/_helpers.tpl skeleton
`gen-configmap-template`	generate a ConfigMap template from a values section
`gen-deployment-template`	generate a Deployment template with standard Helm conventions
`gen-helper-template`	generate a named helper template with documented interface
`gen-helpers-file`	generate templates/_helpers.tpl with standard naming and label helpers
`gen-ingress-template`	generate an Ingress template with host/TLS bindings
`gen-secret-template`	generate a Secret template with b64enc data references
`gen-service-template`	generate a Service template with .Values.service bindings
`gen-values-file`	generate values.yaml with sensible defaults
`inline`	Inline a variable, function, or method — replace every usage with its definition body, then remove the original. The inverse of extract. Works without LSP (single-file); LSP enables cross-file inlining. Params: file (string), symbol (string) [, line (u32), preview (bool), receipt (bool)]
`inline-template`	inline a single-use include call with the referenced template body
`inline-values-reference`	replace a .Values reference with its hardcoded literal value
`insert_body`	Replace a function's implementation body with new code. AST-validated — rejects if the result has parse errors, so you can't accidentally break syntax. Use instead of manual text editing for function rewrites. Params: file (string), symbol (string), code (string) [, commit (bool)]
`move-helper-to-template`	move a define block from _helpers.tpl to a chart template file
`move-template-to-helpers`	move a define block from a chart template to _helpers.tpl
`move_symbol`	Move a function, class, or type to a different file and automatically update all imports across the codebase. Use instead of manually cut/paste + fixing imports. Works without LSP (single-file); LSP enables cross-file import updates. Params: file (string), symbol (string), destination (string) [, preview (bool), receipt (bool)]
`organize-helpers`	sort and group define blocks in _helpers.tpl alphabetically
`recipe_run`	Run a codemod recipe: declarative match → transform → optional verify across modeled grammars. Preview lists matches; apply writes with optional E7 receipts and all-or-nothing rollback. Returns a per-site report.
`remove-if-condition`	remove an if block keeping only the then-branch
`remove-value-default`	remove \| default filter from a .Values reference
`rename`	Rename a symbol and automatically update ALL references across the codebase. Safer and faster than find-and-replace — AST-aware, won't rename strings or comments. Works without LSP (single-file); LSP enables cross-file renames. Params: file (string), old_name (string), new_name (string) [, line (u32), column (u32), preview (bool), receipt (bool)]
`rename-named-template`	rename a named template across all template files in the chart
`rename-template`	rename a named template and update all include/template call sites
`rename-value`	rename a .Values key and update all template references

Analysis

42 analysis tools, the same on every supported language. Descriptions live in the shared reference: /docs/analysis-tools.

analyze_api_diff analyze_chokepoints analyze_clones analyze_clusters analyze_cohesion analyze_conformance analyze_coupling analyze_cycle_risk analyze_cycles analyze_dead_code analyze_depth analyze_entry_points analyze_export analyze_extraction analyze_fan_balance analyze_features analyze_hotspots analyze_impact analyze_inconsistencies analyze_inheritance analyze_interface_bloat analyze_interfaces analyze_layers analyze_orphan_types analyze_patterns analyze_platform_deps analyze_readiness analyze_roles analyze_seams analyze_stability analyze_surface analyze_test_gaps analyze_thickness analyze_type_completeness churn_hotspots co_change_clusters coverage_overlay ownership_map profile_overlay simulate split_module trace_overlay

Verify

14 verify tools, the same on every supported language. Descriptions live in the shared reference: /docs/verification.

bisect_regression gate generate_test_harness scan secret_surface summarize_pr taint_flow unsafe_surface verify_behavioral_equivalence verify_contract_preserved verify_diff_semantics verify_port_parity verify_side_effects verify_test_impact

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